{"title":"Plenum Spacers","description":"","products":[{"product_id":"mace-performance-plenum-spacer-kit-to-suit-holden-ecotec-l36-38l-v6","title":"MACE PERFORMANCE PLENUM SPACER KIT TO SUIT HOLDEN ECOTEC L36 3.8L V6","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eExclusive to Mace Engineering is our design-registered plenum spacer to suit Holden Ecotec 3.8L V6 engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\"\u003e\u003c\/div\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur due to poor air distributionwith standard manifolds in high horsepower\/boost applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDesign registered.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePower increase with no undesirable side effects.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved air distribution between each cylinder.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved fuel economy.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEasy to install.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCan be used as a replacement gasket.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReusable.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eProven gains at an affordable price.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-header=\"0\" data-textformat='{\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Plenum spacer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Bolt pack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Silicone gasket maker\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-VFG_6b5a4b4f-b150-452f-81c3-97815566553c.png?v=1762935088\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-PG_cb97d60e-4804-418d-a0a0-375323a6a097.png?v=1762935362\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-doc-rid=\"9de9d73d85a2d777649788d45b4b3d761893d\"\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNotes: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe 25mm plenum spacer is recommended for turbo or supercharged applications only.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan data-doc-rid=\"3w4gd1e1c400831b54edcad6795e0c253374a\" style=\"color: rgb(0, 0, 0);\"\u003eInstallation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MACE","offers":[{"title":"MI608","offer_id":60775580008818,"sku":"MI608","price":150.0,"currency_code":"NZD","in_stock":true},{"title":"MI609","offer_id":60775580041586,"sku":"MI609","price":225.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-MI609-Updated-Image-2_850864ec-db3a-4ef4-85c3-473e6a6017b3.png?v=1762326992"},{"product_id":"mace-performance-plenum-spacer-kit-to-suit-holden-calais-vs-vt-vx-vy-ecotec-l36-38l-v6","title":"MACE PERFORMANCE PLENUM SPACER KIT TO SUIT HOLDEN CALAIS VS VT VX VY ECOTEC L36 3.8L V6","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eExclusive to Mace Engineering is our design-registered plenum spacer to suit Holden Ecotec 3.8L V6 engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\"\u003e\u003c\/div\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur due to poor air distributionwith standard manifolds in high horsepower\/boost applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDesign registered.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePower increase with no undesirable side effects.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved air distribution between each cylinder.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved fuel economy.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEasy to install.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCan be used as a replacement gasket.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReusable.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eProven gains at an affordable price.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-header=\"0\" data-textformat='{\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Plenum spacer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Bolt pack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Silicone gasket maker\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-VFG_6b5a4b4f-b150-452f-81c3-97815566553c.png?v=1762935088\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-PG_cb97d60e-4804-418d-a0a0-375323a6a097.png?v=1762935362\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-doc-rid=\"9de9d73d85a2d777649788d45b4b3d761893d\"\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNotes: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe 25mm plenum spacer is recommended for turbo or supercharged applications only.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan data-doc-rid=\"3w4gd1e1c400831b54edcad6795e0c253374a\" style=\"color: rgb(0, 0, 0);\"\u003eInstallation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MACE","offers":[{"title":"MI608","offer_id":60775580107122,"sku":"MI608-A","price":150.0,"currency_code":"NZD","in_stock":true},{"title":"MI609","offer_id":60775580139890,"sku":"MI609-A","price":225.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-MI609-Updated-Image-2_1d740221-4efd-44a6-b3d8-1b32ca08453e.png?v=1762326990"},{"product_id":"mace-performance-plenum-spacer-kit-to-suit-holden-caprice-vs-wh-wk-ecotec-l36-38l-v6","title":"MACE PERFORMANCE PLENUM SPACER KIT TO SUIT HOLDEN CAPRICE VS WH WK ECOTEC L36 3.8L V6","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eExclusive to Mace Engineering is our design-registered plenum spacer to suit Holden Ecotec 3.8L V6 engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\"\u003e\u003c\/div\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur due to poor air distributionwith standard manifolds in high horsepower\/boost applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDesign registered.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePower increase with no undesirable side effects.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved air distribution between each cylinder.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved fuel economy.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEasy to install.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCan be used as a replacement gasket.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReusable.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eProven gains at an affordable price.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-header=\"0\" data-textformat='{\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Plenum spacer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Bolt pack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Silicone gasket maker\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-VFG_6b5a4b4f-b150-452f-81c3-97815566553c.png?v=1762935088\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-PG_cb97d60e-4804-418d-a0a0-375323a6a097.png?v=1762935362\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-doc-rid=\"9de9d73d85a2d777649788d45b4b3d761893d\"\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNotes: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe 25mm plenum spacer is recommended for turbo or supercharged applications only.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan data-doc-rid=\"3w4gd1e1c400831b54edcad6795e0c253374a\" style=\"color: rgb(0, 0, 0);\"\u003eInstallation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MACE","offers":[{"title":"MI608","offer_id":60775580205426,"sku":"MI608-B","price":150.0,"currency_code":"NZD","in_stock":true},{"title":"MI609","offer_id":60775580238194,"sku":"MI609-B","price":225.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-MI609-Updated-Image-2_b51f07fd-6b01-417a-9559-85ca4b1dfe92.png?v=1762326989"},{"product_id":"mace-performance-plenum-spacer-kit-to-suit-holden-commodore-vs-vt-vu-vx-vy-ecotec-l36-38l-v6","title":"MACE PERFORMANCE PLENUM SPACER KIT TO SUIT HOLDEN COMMODORE VS VT VU VX VY ECOTEC L36 3.8L V6","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eExclusive to Mace Engineering is our design-registered plenum spacer to suit Holden Ecotec 3.8L V6 engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\"\u003e\u003c\/div\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur due to poor air distributionwith standard manifolds in high horsepower\/boost applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDesign registered.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePower increase with no undesirable side effects.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved air distribution between each cylinder.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved fuel economy.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEasy to install.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCan be used as a replacement gasket.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReusable.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eProven gains at an affordable price.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-header=\"0\" data-textformat='{\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Plenum spacer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Bolt pack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Silicone gasket maker\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-VFG_6b5a4b4f-b150-452f-81c3-97815566553c.png?v=1762935088\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-PG_cb97d60e-4804-418d-a0a0-375323a6a097.png?v=1762935362\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-doc-rid=\"9de9d73d85a2d777649788d45b4b3d761893d\"\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNotes: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe 25mm plenum spacer is recommended for turbo or supercharged applications only.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan data-doc-rid=\"3w4gd1e1c400831b54edcad6795e0c253374a\" style=\"color: rgb(0, 0, 0);\"\u003eInstallation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MACE","offers":[{"title":"MI608","offer_id":60775580303730,"sku":"MI608-C","price":150.0,"currency_code":"NZD","in_stock":true},{"title":"MI609","offer_id":60775580336498,"sku":"MI609-C","price":225.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-MI609-Updated-Image-2_084c6b89-0fe5-48a5-8550-626da82103fa.png?v=1762326988"},{"product_id":"mace-performance-plenum-spacer-kit-to-suit-holden-one-tonner-vy-ecotec-l36-38l-v6","title":"MACE PERFORMANCE PLENUM SPACER KIT TO SUIT HOLDEN ONE TONNER VY ECOTEC L36 3.8L V6","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eExclusive to Mace Engineering is our design-registered plenum spacer to suit Holden Ecotec 3.8L V6 engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\"\u003e\u003c\/div\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur due to poor air distributionwith standard manifolds in high horsepower\/boost applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDesign registered.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePower increase with no undesirable side effects.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved air distribution between each cylinder.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved fuel economy.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEasy to install.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCan be used as a replacement gasket.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReusable.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eProven gains at an affordable price.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-header=\"0\" data-textformat='{\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Plenum spacer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Bolt pack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Silicone gasket maker\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-VFG_6b5a4b4f-b150-452f-81c3-97815566553c.png?v=1762935088\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-PG_cb97d60e-4804-418d-a0a0-375323a6a097.png?v=1762935362\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-doc-rid=\"9de9d73d85a2d777649788d45b4b3d761893d\"\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNotes: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe 25mm plenum spacer is recommended for turbo or supercharged applications only.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan data-doc-rid=\"3w4gd1e1c400831b54edcad6795e0c253374a\" style=\"color: rgb(0, 0, 0);\"\u003eInstallation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MACE","offers":[{"title":"MI608","offer_id":60775580402034,"sku":"MI608-E","price":150.0,"currency_code":"NZD","in_stock":true},{"title":"MI609","offer_id":60775580434802,"sku":"MI609-E","price":225.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-MI609-Updated-Image-2_f3279f02-262d-4bc5-8dc6-c706a0d4b35c.png?v=1762326986"},{"product_id":"mace-performance-plenum-spacer-kit-to-suit-holden-crewman-vy-ecotec-l36-38l-v6","title":"MACE PERFORMANCE PLENUM SPACER KIT TO SUIT HOLDEN CREWMAN VY ECOTEC L36 3.8L V6","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eExclusive to Mace Engineering is our design-registered plenum spacer to suit Holden Ecotec 3.8L V6 engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\"\u003e\u003c\/div\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur due to poor air distributionwith standard manifolds in high horsepower\/boost applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDesign registered.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePower increase with no undesirable side effects.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved air distribution between each cylinder.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved fuel economy.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEasy to install.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCan be used as a replacement gasket.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReusable.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eProven gains at an affordable price.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-header=\"0\" data-textformat='{\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Plenum spacer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Bolt pack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Silicone gasket maker\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-VFG_6b5a4b4f-b150-452f-81c3-97815566553c.png?v=1762935088\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-PG_cb97d60e-4804-418d-a0a0-375323a6a097.png?v=1762935362\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-doc-rid=\"9de9d73d85a2d777649788d45b4b3d761893d\"\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNotes: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe 25mm plenum spacer is recommended for turbo or supercharged applications only.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan data-doc-rid=\"3w4gd1e1c400831b54edcad6795e0c253374a\" style=\"color: rgb(0, 0, 0);\"\u003eInstallation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MACE","offers":[{"title":"MI608","offer_id":60775581024626,"sku":"MI608-D","price":150.0,"currency_code":"NZD","in_stock":true},{"title":"MI609","offer_id":60775581057394,"sku":"MI609-D","price":225.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-MI609-Updated-Image-2_6d452669-f79f-423d-8488-8d2c1ce2f488.png?v=1762326984"},{"product_id":"mace-performance-plenum-spacer-kit-to-suit-holden-statesman-vs-wh-wk-ecotec-l36-38l-v6","title":"MACE PERFORMANCE PLENUM SPACER KIT TO SUIT HOLDEN STATESMAN VS WH WK ECOTEC L36 3.8L V6","description":"\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eExclusive to Mace Engineering is our design-registered plenum spacer to suit Holden Ecotec 3.8L V6 engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\"\u003e\u003c\/div\u003e\n\u003cp data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur due to poor air distributionwith standard manifolds in high horsepower\/boost applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDesign registered.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePower increase with no undesirable side effects.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved air distribution between each cylinder.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eImproved fuel economy.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEasy to install.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCan be used as a replacement gasket.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eReusable.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eProven gains at an affordable price.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-header=\"0\" data-textformat='{\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Plenum spacer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Bolt pack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e1 X Silicone gasket maker\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-VFG_6b5a4b4f-b150-452f-81c3-97815566553c.png?v=1762935088\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-PG_cb97d60e-4804-418d-a0a0-375323a6a097.png?v=1762935362\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan data-doc-rid=\"9de9d73d85a2d777649788d45b4b3d761893d\"\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNotes: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe 25mm plenum spacer is recommended for turbo or supercharged applications only.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"color: rgb(0, 0, 0);\"\u003e\u003cspan data-doc-rid=\"3w4gd1e1c400831b54edcad6795e0c253374a\" style=\"color: rgb(0, 0, 0);\"\u003eInstallation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MACE","offers":[{"title":"MI608","offer_id":60775581385074,"sku":"MI608-F","price":150.0,"currency_code":"NZD","in_stock":true},{"title":"MI609","offer_id":60775581417842,"sku":"MI609-F","price":225.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI608-MI609-Updated-Image-2_dcbb6e52-dd1d-4353-b339-7c4a3986b800.png?v=1761283682"},{"product_id":"mace-performance-plenum-spacer-to-suit-holden-sidi-llt-36l-v6","title":"MACE PERFORMANCE PLENUM SPACER TO SUIT HOLDEN SIDI LLT 3.6L V6","description":"\u003cp data-doc-rid=\"5clyi894694ee5c124028b2cca690259e954f\" data-header=\"0\" data-textformat='{\"ff\":\"arial,verdana,helvetica\",\"td\":\"none solid rgb(0, 0, 0)\",\"fw\":\"bold\",\"fgc\":\"#eb2b33\",\"size\":\"12\",\"type\":\"text\",\"bgc\":\"rgb(255, 255, 255)\"}'\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eExclusive to Mace Engineering is our design-registered plenum spacer kit to suit Holden SIDI LLT 3.6L V6 engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-doc-rid=\"5clyi894694ee5c124028b2cca690259e954f\" data-header=\"0\" data-textformat='{\"ff\":\"arial,verdana,helvetica\",\"td\":\"none solid rgb(0, 0, 0)\",\"fw\":\"bold\",\"fgc\":\"#eb2b33\",\"size\":\"12\",\"type\":\"text\",\"bgc\":\"rgb(255, 255, 255)\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\" data-textformat='{\"fw\":\"bold\",\"fgc\":\"#eb2b33\",\"size\":\"12\",\"type\":\"text\"}'\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-header=\"0\" data-textformat='{\"td\":\"none\",\"size\":\"12\",\"type\":\"text\"}'\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/p\u003e\n\u003cp data-header=\"0\" data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"size\":\"12\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\" data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"size\":\"12\",\"type\":\"text\"}' style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\"\u003e\u003c\/p\u003e\n\u003cp data-header=\"0\" data-textformat='{\"td\":\"none solid rgb(0, 0, 0)\",\"size\":\"12\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occurdue to poor air distribution with standard manifolds in high horsepower\/boost applications.\u003c\/p\u003e\n\u003cp\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/p\u003e\n\u003cp\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eDesign registered.\u003c\/li\u003e\n\u003cli\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/li\u003e\n\u003cli\u003ePower increase with no undesirable side effects.\u003c\/li\u003e\n\u003cli\u003eImproved air distribution between each cylinder.\u003c\/li\u003e\n\u003cli\u003eImproved fuel economy.\u003c\/li\u003e\n\u003cli\u003eEasy to install.\u003c\/li\u003e\n\u003cli\u003eCan be used as a replacement gasket.\u003c\/li\u003e\n\u003cli\u003eReusable.\u003c\/li\u003e\n\u003cli\u003eProven gains at an affordable price.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 X Plenum spacer\u003c\/li\u003e\n\u003cli\u003e1 X Bolt pack(Not included in MI630, refer to parts guide)\u003c\/li\u003e\n\u003cli\u003e1 X Silicone gasket maker\u003c\/li\u003e\n\u003cli\u003e4 X Spacer bush\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI624-VFG.png?v=1762935088\"\u003e\u003c\/div\u003e\n\u003cp data-header=\"0\" data-textformat='{\"fgc\":\"#eb2b33\",\"size\":\"12\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\" data-header=\"0\" data-textformat='{\"fgc\":\"#eb2b33\",\"size\":\"12\",\"type\":\"text\"}'\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI624-PG.png?v=1762935088\"\u003e\u003c\/div\u003e\n\u003cp data-header=\"0\" data-textformat='{\"fgc\":\"#eb2b33\",\"size\":\"12\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\" data-textformat='{\"fgc\":\"#eb2b33\",\"size\":\"12\",\"type\":\"text\"}'\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-header=\"0\" data-textformat='{\"size\":\"12\",\"type\":\"text\"}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\" data-textformat='{\"size\":\"12\",\"type\":\"text\"}'\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/span\u003e Installation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/p\u003e","brand":"MACE","offers":[{"title":"MI624","offer_id":60775581483378,"sku":"MI624","price":155.0,"currency_code":"NZD","in_stock":true},{"title":"MI630","offer_id":60775581516146,"sku":"MI630","price":130.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI624-Updated-Image.png?v=1761283720"},{"product_id":"mace-performance-plenum-spacer-kit-to-suit-chevrolet-camaro-g5-sidi-llt-36l-v6","title":"MACE PERFORMANCE PLENUM SPACER KIT TO SUIT CHEVROLET CAMARO G5 SIDI LLT 3.6L V6","description":"\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eExclusive to Mace Engineering is our design-registered plenum spacer kit to suit Chevrolet SIDI LLT 3.6L V6 engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan id=\"docs-internal-guid-0059b8f0-7fff-53cf-3350-f9b89ad4cf6e\"\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve the air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan id=\"docs-internal-guid-7ff1290e-7fff-8793-bf84-eef88a9aaf80\"\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur due to poor air distribution with standard manifolds in high horsepower\/boost applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan id=\"docs-internal-guid-eaae94d4-7fff-9c5f-3601-dd8d38e5018e\"\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan id=\"docs-internal-guid-d3cf2f9f-7fff-ad9a-0b3f-c4f6b2b314fb\"\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003e\u003cspan id=\"docs-internal-guid-c4d9b1b7-7fff-c730-d6f7-420e19dc297d\"\u003eKey Benefits:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesign registered.\u003c\/li\u003e\n\u003cli\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/li\u003e\n\u003cli\u003ePower increase with no undesirable side effects.\u003c\/li\u003e\n\u003cli\u003eImproved air distribution between each cylinder.\u003c\/li\u003e\n\u003cli\u003eImproved fuel economy.\u003c\/li\u003e\n\u003cli\u003eEasy to install.\u003c\/li\u003e\n\u003cli\u003eCan be used as a replacement gasket.\u003c\/li\u003e\n\u003cli\u003eReusable.\u003c\/li\u003e\n\u003cli\u003eProven gains at an affordable price.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003e\u003cspan id=\"docs-internal-guid-c4d9b1b7-7fff-c730-d6f7-420e19dc297d\"\u003eContents:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan id=\"docs-internal-guid-c4d9b1b7-7fff-c730-d6f7-420e19dc297d\"\u003e1 X Plenum spacer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan id=\"docs-internal-guid-c4d9b1b7-7fff-c730-d6f7-420e19dc297d\"\u003e1 X Bolt pack (Not included in MI690, refer to parts guide)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan id=\"docs-internal-guid-c4d9b1b7-7fff-c730-d6f7-420e19dc297d\"\u003e1 X Silicone gasket maker\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan id=\"docs-internal-guid-c4d9b1b7-7fff-c730-d6f7-420e19dc297d\"\u003e4 X Spacer bush\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI626-VFG.png?v=1762935088\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI626-PG.png?v=1762935088\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\" data-list-id=\"10091183\" data-list-info='{\"id\":\"10091183\",\"l\":0}' data-writer-border-info='{\"border-sides\":[\"border-top\",\"border-right\",\"border-left\",\"border-bottom\"]}'\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-header=\"0\" data-list-id=\"10091183\" data-list-info='{\"id\":\"10091183\",\"l\":0}' data-writer-border-info='{\"border-sides\":[\"border-top\",\"border-right\",\"border-left\",\"border-bottom\"]}'\u003e \u003c\/p\u003e\n\u003cp data-header=\"0\" data-list-id=\"10091183\" data-list-info='{\"id\":\"10091183\",\"l\":0}' data-writer-border-info='{\"border-sides\":[\"border-top\",\"border-right\",\"border-left\",\"border-bottom\"]}'\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNote\u003c\/strong\u003e\u003c\/span\u003e: Installation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/p\u003e","brand":"MACE","offers":[{"title":"MI626","offer_id":60775586333042,"sku":"MI626","price":160.0,"currency_code":"NZD","in_stock":true},{"title":"MI690","offer_id":60775586365810,"sku":"MI690","price":130.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Image-MI626-Updated-Image.png?v=1761284029"},{"product_id":"mace-manifold-plenum-spacer-kit-to-suit-nissan-vq35de-35l-v6","title":"MACE MANIFOLD PLENUM SPACER KIT TO SUIT NISSAN VQ35DE 3.5L V6","description":"\u003cp\u003eOur plenum spacer sits between the plenum and plenum cover. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result, there is less of a pressure drop inside the plenum chamber between cylinders and less air momentum. This, in turn, feeds each intake runner more evenly improving throttle response and bottom end torque.\u003c\/p\u003e\n\u003cp\u003eThe change in airflow characteristics is shown in the diagram below.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNot only will our spacer help you make more power, it will also reduce air-fuel ratio variance between cylinders due to improved air distribution between cylinders. This is particularly important with engines running an aggressive tune or in boosted setups, as it reduces the likelihood of detonation.\u003c\/p\u003e\n\u003cp\u003eAs it is also manufactured from the same thermal resistant material as our manifold insulators, further horsepower gains and more consistent power output is achieved due to the reduction in air temperature.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManifold plenum spacer\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003cli\u003eGasket maker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProvides better air distribution between cylinders\u003c\/li\u003e\n\u003cli\u003eProduces a cooler charge air temperature\u003c\/li\u003e\n\u003cli\u003eImproves low end torque by increasing plenum volume\u003c\/li\u003e\n\u003cli\u003eBetter fuel economy\u003c\/li\u003e\n\u003cli\u003eReusable over and over again\u003c\/li\u003e\n\u003cli\u003eNo undesirable side effects\u003c\/li\u003e\n\u003cli\u003eDIY Installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI633-VFG.png?v=1762935653\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI633-PG.png?v=1762935653\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eInstallation is very straight forward, only requiring the removal of the plenum cover to install the plenum spacer.\u003c\/li\u003e\n\u003cli\u003eThe 8mm spacer is generally suited for vehicles running a factory or aftermarket strut brace. The 12mm spacer will have clearances issues with these setups. Due to variances between vehicles, it is important to check the clearance between the plenum and the strut brace before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MACE","offers":[{"title":"MI633","offer_id":60775588004210,"sku":"MI633","price":260.0,"currency_code":"NZD","in_stock":false},{"title":"MI625","offer_id":60775588036978,"sku":"MI625","price":260.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI625-MI633-Updated-Image-1.png?v=1761284110"},{"product_id":"mace-manifold-plenum-spacer-kit-to-suit-nissan-350z-z33-vq35de-35l-v6","title":"MACE MANIFOLD PLENUM SPACER KIT TO SUIT NISSAN 350Z Z33 VQ35DE 3.5L V6","description":"\u003cp\u003eOur plenum spacer sits between the plenum and plenum cover. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result, there is less of a pressure drop inside the plenum chamber between cylinders and less air momentum. This, in turn, feeds each intake runner more evenly improving throttle response and bottom end torque.\u003c\/p\u003e\n\u003cp\u003eThe change in airflow characteristics is shown in the diagram below.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNot only will our spacer help you make more power, it will also reduce air-fuel ratio variance between cylinders due to improved air distribution between cylinders. This is particularly important with engines running an aggressive tune or in boosted setups, as it reduces the likelihood of detonation.\u003c\/p\u003e\n\u003cp\u003eAs it is also manufactured from the same thermal resistant material as our manifold insulators, further horsepower gains and more consistent power output is achieved due to the reduction in air temperature.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManifold plenum spacer\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003cli\u003eGasket maker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProvides better air distribution between cylinders\u003c\/li\u003e\n\u003cli\u003eProduces a cooler charge air temperature\u003c\/li\u003e\n\u003cli\u003eImproves low end torque by increasing plenum volume\u003c\/li\u003e\n\u003cli\u003eBetter fuel economy\u003c\/li\u003e\n\u003cli\u003eReusable over and over again\u003c\/li\u003e\n\u003cli\u003eNo undesirable side effects\u003c\/li\u003e\n\u003cli\u003eDIY Installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI633-VFG.png?v=1762935653\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI633-PG.png?v=1762935653\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eInstallation is very straight forward, only requiring the removal of the plenum cover to install the plenum spacer.\u003c\/li\u003e\n\u003cli\u003eThe 8mm spacer is generally suited for vehicles running a factory or aftermarket strut brace. The 12mm spacer will have clearances issues with these setups. Due to variances between vehicles, it is important to check the clearance between the plenum and the strut brace before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MACE","offers":[{"title":"MI633","offer_id":60775588135282,"sku":"MI633-A","price":260.0,"currency_code":"NZD","in_stock":false},{"title":"MI625","offer_id":60775588168050,"sku":"MI625-A","price":260.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI625-MI633-Updated-Image-1_2b9680de-c937-4086-987c-3bc86b5c4a33.png?v=1761284112"},{"product_id":"mace-manifold-plenum-spacer-kit-to-suit-nissan-altima-l33-vq35de-35l-v6","title":"MACE MANIFOLD PLENUM SPACER KIT TO SUIT NISSAN ALTIMA L33 VQ35DE 3.5L V6","description":"\u003cp\u003eOur plenum spacer sits between the plenum and plenum cover. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result, there is less of a pressure drop inside the plenum chamber between cylinders and less air momentum. This, in turn, feeds each intake runner more evenly improving throttle response and bottom end torque.\u003c\/p\u003e\n\u003cp\u003eThe change in airflow characteristics is shown in the diagram below.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNot only will our spacer help you make more power, it will also reduce air-fuel ratio variance between cylinders due to improved air distribution between cylinders. This is particularly important with engines running an aggressive tune or in boosted setups, as it reduces the likelihood of detonation.\u003c\/p\u003e\n\u003cp\u003eAs it is also manufactured from the same thermal resistant material as our manifold insulators, further horsepower gains and more consistent power output is achieved due to the reduction in air temperature.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManifold plenum spacer\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003cli\u003eGasket maker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProvides better air distribution between cylinders\u003c\/li\u003e\n\u003cli\u003eProduces a cooler charge air temperature\u003c\/li\u003e\n\u003cli\u003eImproves low end torque by increasing plenum volume\u003c\/li\u003e\n\u003cli\u003eBetter fuel economy\u003c\/li\u003e\n\u003cli\u003eReusable over and over again\u003c\/li\u003e\n\u003cli\u003eNo undesirable side effects\u003c\/li\u003e\n\u003cli\u003eDIY Installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI633-VFG.png?v=1762935653\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI633-PG.png?v=1762935653\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eInstallation is very straight forward, only requiring the removal of the plenum cover to install the plenum spacer.\u003c\/li\u003e\n\u003cli\u003eThe 8mm spacer is generally suited for vehicles running a factory or aftermarket strut brace. The 12mm spacer will have clearances issues with these setups. Due to variances between vehicles, it is important to check the clearance between the plenum and the strut brace before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MACE","offers":[{"title":"MI633","offer_id":60775588266354,"sku":"MI633-B","price":260.0,"currency_code":"NZD","in_stock":false},{"title":"MI625","offer_id":60775588299122,"sku":"MI625-B","price":260.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI625-MI633-Updated-Image-1_9eb298a4-c9c7-4abd-990e-457cb07256f2.png?v=1761284113"},{"product_id":"mace-manifold-plenum-spacer-kit-to-suit-nissan-pathfinder-r52-vq35de-35l-v6","title":"MACE MANIFOLD PLENUM SPACER KIT TO SUIT NISSAN PATHFINDER R52 VQ35DE 3.5L V6","description":"\u003cp\u003eOur plenum spacer sits between the plenum and plenum cover. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result, there is less of a pressure drop inside the plenum chamber between cylinders and less air momentum. This, in turn, feeds each intake runner more evenly improving throttle response and bottom end torque.\u003c\/p\u003e\n\u003cp\u003eThe change in airflow characteristics is shown in the diagram below.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNot only will our spacer help you make more power, it will also reduce air-fuel ratio variance between cylinders due to improved air distribution between cylinders. This is particularly important with engines running an aggressive tune or in boosted setups, as it reduces the likelihood of detonation.\u003c\/p\u003e\n\u003cp\u003eAs it is also manufactured from the same thermal resistant material as our manifold insulators, further horsepower gains and more consistent power output is achieved due to the reduction in air temperature.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManifold plenum spacer\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003cli\u003eGasket maker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProvides better air distribution between cylinders\u003c\/li\u003e\n\u003cli\u003eProduces a cooler charge air temperature\u003c\/li\u003e\n\u003cli\u003eImproves low end torque by increasing plenum volume\u003c\/li\u003e\n\u003cli\u003eBetter fuel economy\u003c\/li\u003e\n\u003cli\u003eReusable over and over again\u003c\/li\u003e\n\u003cli\u003eNo undesirable side effects\u003c\/li\u003e\n\u003cli\u003eDIY Installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI633-VFG.png?v=1762935653\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI633-PG.png?v=1762935653\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eInstallation is very straight forward, only requiring the removal of the plenum cover to install the plenum spacer.\u003c\/li\u003e\n\u003cli\u003eThe 8mm spacer is generally suited for vehicles running a factory or aftermarket strut brace. The 12mm spacer will have clearances issues with these setups. Due to variances between vehicles, it is important to check the clearance between the plenum and the strut brace before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MACE","offers":[{"title":"MI633","offer_id":60775588364658,"sku":"MI633-C","price":260.0,"currency_code":"NZD","in_stock":false},{"title":"MI625","offer_id":60775588397426,"sku":"MI625-C","price":260.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI625-MI633-Updated-Image-1_30d206b6-b24e-4ef5-a6c5-9976514ccc66.png?v=1761284122"},{"product_id":"mace-manifold-plenum-spacer-kit-to-suit-nissan-skyline-v35-vq35de-35l-v6","title":"MACE MANIFOLD PLENUM SPACER KIT TO SUIT NISSAN SKYLINE V35 VQ35DE 3.5L V6","description":"\u003cp\u003eOur plenum spacer sits between the plenum and plenum cover. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result, there is less of a pressure drop inside the plenum chamber between cylinders and less air momentum. This, in turn, feeds each intake runner more evenly improving throttle response and bottom end torque.\u003c\/p\u003e\n\u003cp\u003eThe change in airflow characteristics is shown in the diagram below.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNot only will our spacer help you make more power, it will also reduce air-fuel ratio variance between cylinders due to improved air distribution between cylinders. This is particularly important with engines running an aggressive tune or in boosted setups, as it reduces the likelihood of detonation.\u003c\/p\u003e\n\u003cp\u003eAs it is also manufactured from the same thermal resistant material as our manifold insulators, further horsepower gains and more consistent power output is achieved due to the reduction in air temperature.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManifold plenum spacer\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003cli\u003eGasket maker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProvides better air distribution between cylinders\u003c\/li\u003e\n\u003cli\u003eProduces a cooler charge air temperature\u003c\/li\u003e\n\u003cli\u003eImproves low end torque by increasing plenum volume\u003c\/li\u003e\n\u003cli\u003eBetter fuel economy\u003c\/li\u003e\n\u003cli\u003eReusable over and over again\u003c\/li\u003e\n\u003cli\u003eNo undesirable side effects\u003c\/li\u003e\n\u003cli\u003eDIY Installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI633-VFG.png?v=1762935653\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI633-PG.png?v=1762935653\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eInstallation is very straight forward, only requiring the removal of the plenum cover to install the plenum spacer.\u003c\/li\u003e\n\u003cli\u003eThe 8mm spacer is generally suited for vehicles running a factory or aftermarket strut brace. The 12mm spacer will have clearances issues with these setups. Due to variances between vehicles, it is important to check the clearance between the plenum and the strut brace before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MACE","offers":[{"title":"MI633","offer_id":60775588462962,"sku":"MI633-D","price":260.0,"currency_code":"NZD","in_stock":false},{"title":"MI625","offer_id":60775588495730,"sku":"MI625-D","price":260.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI625-MI633-Updated-Image-1_a238f1a6-eb71-4739-ae33-6bb8c1edcd44.png?v=1761284130"},{"product_id":"mace-manifold-plenum-spacer-kit-to-suit-nissan-stagea-m35-vq35de-35l-v6","title":"MACE MANIFOLD PLENUM SPACER KIT TO SUIT NISSAN STAGEA M35 VQ35DE 3.5L V6","description":"\u003cp\u003eOur plenum spacer sits between the plenum and plenum cover. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result, there is less of a pressure drop inside the plenum chamber between cylinders and less air momentum. This, in turn, feeds each intake runner more evenly improving throttle response and bottom end torque.\u003c\/p\u003e\n\u003cp\u003eThe change in airflow characteristics is shown in the diagram below.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/Plenum-Spacer-Draft-Image.jpg?v=1768470125\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNot only will our spacer help you make more power, it will also reduce air-fuel ratio variance between cylinders due to improved air distribution between cylinders. This is particularly important with engines running an aggressive tune or in boosted setups, as it reduces the likelihood of detonation.\u003c\/p\u003e\n\u003cp\u003eAs it is also manufactured from the same thermal resistant material as our manifold insulators, further horsepower gains and more consistent power output is achieved due to the reduction in air temperature.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManifold plenum spacer\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003cli\u003eGasket maker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProvides better air distribution between cylinders\u003c\/li\u003e\n\u003cli\u003eProduces a cooler charge air temperature\u003c\/li\u003e\n\u003cli\u003eImproves low end torque by increasing plenum volume\u003c\/li\u003e\n\u003cli\u003eBetter fuel economy\u003c\/li\u003e\n\u003cli\u003eReusable over and over again\u003c\/li\u003e\n\u003cli\u003eNo undesirable side effects\u003c\/li\u003e\n\u003cli\u003eDIY Installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI633-VFG.png?v=1762935653\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eParts Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI633-PG.png?v=1762935653\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003ePlease select the part number you require from the variation by utilising our vehicle fitment guide and parts guide.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eInstallation is very straight forward, only requiring the removal of the plenum cover to install the plenum spacer.\u003c\/li\u003e\n\u003cli\u003eThe 8mm spacer is generally suited for vehicles running a factory or aftermarket strut brace. The 12mm spacer will have clearances issues with these setups. Due to variances between vehicles, it is important to check the clearance between the plenum and the strut brace before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MACE","offers":[{"title":"MI633","offer_id":60775588626802,"sku":"MI633-E","price":260.0,"currency_code":"NZD","in_stock":false},{"title":"MI625","offer_id":60775588659570,"sku":"MI625-E","price":260.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI625-MI633-Updated-Image-1_1c727016-b90d-4463-883f-14b123c95894.png?v=1761284136"},{"product_id":"mace-performance-635mm-plenum-spacer-to-suit-fpv-boss-290-315-54l-v8","title":"MACE PERFORMANCE 6.35MM PLENUM SPACER TO SUIT FPV BOSS 290 315 5.4L V8","description":"\u003cp\u003eExclusive to Mace Engineering is our design-registered plenum spacer to suit FPV Boss 290 and 315 V8 engines.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/plenum_daigram.jpg?v=1773642390\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur with standard manifolds in high horsepower\/boost applications (due to poor air distribution).\u003c\/p\u003e\n\u003cp\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/p\u003e\n\u003cp\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesign registered.\u003c\/li\u003e\n\u003cli\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/li\u003e\n\u003cli\u003ePower increase with no undesirable side effects.\u003c\/li\u003e\n\u003cli\u003eImproved air distribution between each cylinder.\u003c\/li\u003e\n\u003cli\u003eImproved fuel economy.\u003c\/li\u003e\n\u003cli\u003eEasy to install.\u003c\/li\u003e\n\u003cli\u003eCan be used as a replacement gasket.\u003c\/li\u003e\n\u003cli\u003eReusable.\u003c\/li\u003e\n\u003cli\u003eProven gains at an affordable price.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e01 XPlenum spacer\u003c\/li\u003e\n\u003cli\u003e01 X Silicone gasket maker\u003c\/li\u003e\n\u003cli\u003e04 X Spacer bush\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"VFG_MI810\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI810-VFG.jpg?v=1762935654\" style=\"width: 328px; height: 227px;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e \u003c\/span\u003eInstallation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/p\u003e","brand":"MACE","offers":[{"title":"Default Title","offer_id":60775656063346,"sku":"MI810","price":155.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI810-Updated-Image-2_38d8eeb5-203e-4cb4-a8f9-4b14c7571ef1.png?v=1762940890"},{"product_id":"mace-performance-635mm-plenum-spacer-to-suit-fpv-force-8-bf-boss-290-54l-v8","title":"MACE PERFORMANCE 6.35MM PLENUM SPACER TO SUIT FPV FORCE 8 BF BOSS 290 5.4L V8","description":"\u003cp\u003eExclusive to Mace Engineering is our design-registered plenum spacer to suit FPV Boss 290 and 315 V8 engines.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/plenum_daigram.jpg?v=1773642390\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur with standard manifolds in high horsepower\/boost applications (due to poor air distribution).\u003c\/p\u003e\n\u003cp\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/p\u003e\n\u003cp\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesign registered.\u003c\/li\u003e\n\u003cli\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/li\u003e\n\u003cli\u003ePower increase with no undesirable side effects.\u003c\/li\u003e\n\u003cli\u003eImproved air distribution between each cylinder.\u003c\/li\u003e\n\u003cli\u003eImproved fuel economy.\u003c\/li\u003e\n\u003cli\u003eEasy to install.\u003c\/li\u003e\n\u003cli\u003eCan be used as a replacement gasket.\u003c\/li\u003e\n\u003cli\u003eReusable.\u003c\/li\u003e\n\u003cli\u003eProven gains at an affordable price.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e01 XPlenum spacer\u003c\/li\u003e\n\u003cli\u003e01 X Silicone gasket maker\u003c\/li\u003e\n\u003cli\u003e04 X Spacer bush\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"VFG_MI810\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI810-VFG.jpg?v=1762935654\" style=\"width: 328px; height: 227px;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e \u003c\/span\u003eInstallation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/p\u003e","brand":"MACE","offers":[{"title":"Default Title","offer_id":60775656391026,"sku":"MI810-A","price":155.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI810-Updated-Image-2_b8ab4fc8-487a-418f-953f-9430be377fc0.png?v=1762940889"},{"product_id":"mace-performance-635mm-plenum-spacer-to-suit-fpv-gt-ba-bf-fg-boss-290-315-54l-v8","title":"MACE PERFORMANCE 6.35MM PLENUM SPACER TO SUIT FPV GT BA BF FG BOSS 290 315 5.4L V8","description":"\u003cp\u003eExclusive to Mace Engineering is our design-registered plenum spacer to suit FPV Boss 290 and 315 V8 engines.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/plenum_daigram.jpg?v=1773642390\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur with standard manifolds in high horsepower\/boost applications (due to poor air distribution).\u003c\/p\u003e\n\u003cp\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/p\u003e\n\u003cp\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesign registered.\u003c\/li\u003e\n\u003cli\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/li\u003e\n\u003cli\u003ePower increase with no undesirable side effects.\u003c\/li\u003e\n\u003cli\u003eImproved air distribution between each cylinder.\u003c\/li\u003e\n\u003cli\u003eImproved fuel economy.\u003c\/li\u003e\n\u003cli\u003eEasy to install.\u003c\/li\u003e\n\u003cli\u003eCan be used as a replacement gasket.\u003c\/li\u003e\n\u003cli\u003eReusable.\u003c\/li\u003e\n\u003cli\u003eProven gains at an affordable price.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e01 XPlenum spacer\u003c\/li\u003e\n\u003cli\u003e01 X Silicone gasket maker\u003c\/li\u003e\n\u003cli\u003e04 X Spacer bush\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"VFG_MI810\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI810-VFG.jpg?v=1762935654\" style=\"width: 328px; height: 227px;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e \u003c\/span\u003eInstallation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/p\u003e","brand":"MACE","offers":[{"title":"Default Title","offer_id":60775657472370,"sku":"MI810-B","price":155.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI810-Updated-Image-2_34a47aa1-8975-44d0-845c-9a4c188301f0.png?v=1762940888"},{"product_id":"mace-performance-635mm-plenum-spacer-to-suit-fpv-pursuit-ba-bf-fg-boss-290-315-54l-v8","title":"MACE PERFORMANCE 6.35MM PLENUM SPACER TO SUIT FPV PURSUIT BA BF FG BOSS 290 315 5.4L V8","description":"\u003cp\u003eExclusive to Mace Engineering is our design-registered plenum spacer to suit FPV Boss 290 and 315 V8 engines.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/plenum_daigram.jpg?v=1773642390\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur with standard manifolds in high horsepower\/boost applications (due to poor air distribution).\u003c\/p\u003e\n\u003cp\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/p\u003e\n\u003cp\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesign registered.\u003c\/li\u003e\n\u003cli\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/li\u003e\n\u003cli\u003ePower increase with no undesirable side effects.\u003c\/li\u003e\n\u003cli\u003eImproved air distribution between each cylinder.\u003c\/li\u003e\n\u003cli\u003eImproved fuel economy.\u003c\/li\u003e\n\u003cli\u003eEasy to install.\u003c\/li\u003e\n\u003cli\u003eCan be used as a replacement gasket.\u003c\/li\u003e\n\u003cli\u003eReusable.\u003c\/li\u003e\n\u003cli\u003eProven gains at an affordable price.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e01 XPlenum spacer\u003c\/li\u003e\n\u003cli\u003e01 X Silicone gasket maker\u003c\/li\u003e\n\u003cli\u003e04 X Spacer bush\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"VFG_MI810\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI810-VFG.jpg?v=1762935654\" style=\"width: 328px; height: 227px;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e \u003c\/span\u003eInstallation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/p\u003e","brand":"MACE","offers":[{"title":"Default Title","offer_id":60775657537906,"sku":"MI810-C","price":155.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI810-Updated-Image-2_4043b1c0-4a21-486a-ae78-f24289bd514f.png?v=1762940888"},{"product_id":"mace-performance-635mm-plenum-spacer-to-suit-fpv-super-pursuit-ba-bf-fg-boss-290-315-54l-v8","title":"MACE PERFORMANCE 6.35MM PLENUM SPACER TO SUIT FPV SUPER PURSUIT BA BF FG BOSS 290 315 5.4L V8","description":"\u003cp\u003eExclusive to Mace Engineering is our design-registered plenum spacer to suit FPV Boss 290 and 315 V8 engines.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eWhat is a plenum spacer and what does it do?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA plenum spacer thermally separates the plenum cover and intake manifold. Its main purpose is to improve air distribution between cylinders by slowing down the air speed inside the plenum chamber. As a result there is less of a pressure drop inside the plenum chamber between cylinders, and less air momentum, resulting in better air distribution and power. The change in airflow characteristics is shown in the diagram below.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/plenum_daigram.jpg?v=1773642390\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eNot only will our spacer help you make more power, it will also help prevent any costly rebuilds through dangerous lean outs that occur with standard manifolds in high horsepower\/boost applications (due to poor air distribution).\u003c\/p\u003e\n\u003cp\u003eIn addition to improving air distribution between cylinders, the increase in plenum volume also has a positive effect on bottom end torque.\u003c\/p\u003e\n\u003cp\u003eThe fact these spacers are manufactured from the same thermal resistant composite material as our manifold insulators means further horsepower gains are possible due to the reduction in heat soak.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eKey benefits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesign registered.\u003c\/li\u003e\n\u003cli\u003eReduces charge air temperature resulting in better power consistency and detonation prevention.\u003c\/li\u003e\n\u003cli\u003ePower increase with no undesirable side effects.\u003c\/li\u003e\n\u003cli\u003eImproved air distribution between each cylinder.\u003c\/li\u003e\n\u003cli\u003eImproved fuel economy.\u003c\/li\u003e\n\u003cli\u003eEasy to install.\u003c\/li\u003e\n\u003cli\u003eCan be used as a replacement gasket.\u003c\/li\u003e\n\u003cli\u003eReusable.\u003c\/li\u003e\n\u003cli\u003eProven gains at an affordable price.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eContents:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e01 XPlenum spacer\u003c\/li\u003e\n\u003cli\u003e01 X Silicone gasket maker\u003c\/li\u003e\n\u003cli\u003e04 X Spacer bush\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eVehicle Fitment Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"VFG_MI810\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI810-VFG.jpg?v=1762935654\" style=\"width: 328px; height: 227px;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(255, 0, 0);\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e \u003c\/span\u003eInstallation is very straight forward, requiring only the removal of your plenum cover to install the plenum spacer.\u003c\/p\u003e","brand":"MACE","offers":[{"title":"Default Title","offer_id":60775657603442,"sku":"MI810-D","price":155.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0901\/5509\/0290\/files\/MI810-Updated-Image-2_eb94ea5f-d321-48e0-b6b0-9fcfb1c905a4.png?v=1761286479"}],"url":"https:\/\/www.maceengineering.co.nz\/collections\/plenum-spacers.oembed","provider":"Mace Engineering Group","version":"1.0","type":"link"}