{"product_id":"xforce-holden-vt-vz-v8-5-7l-sedan-1997-2006-stainless-steel-header-1-5-8-inch-primary-2-1-2-inch-metallic-cats-100-cell","title":"XForce | LS1 V8 Headers \u0026 High-Flow Cat Kit | Holden Commodore VT-VZ 1999–2007 | H2-HV12B-KIT","description":"\u003ch2\u003eXForce LS1 V8 Header \u0026amp; Metallic Cat Kit - Holden VT-VZ - H2-HV12B-KIT\u003c\/h2\u003e\n\u003cp\u003eUpgrade your LS1 V8 performance with the Xforce Header and Cat Kit. Crafted from durable 201-grade stainless steel, this kit is specifically engineered to optimize exhaust scavenging and flow for the 5.7L Gen III engine. It features a high-performance 4-into-1 design with 1 5\/8\" primary pipes collecting into a 2.5\" outlet.\u003c\/p\u003e\n\n\u003cp\u003eThe kit includes 2.5\" metallic high-flow 100-cell catalytic converters, providing a significant reduction in backpressure compared to factory units. This combination delivers improved torque, increased horsepower, and the deep, aggressive V8 growl that Xforce is famous for. Designed as a modular upgrade, this kit is intended to bolt directly to Xforce cat-back exhaust systems for a complete performance solution.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the Box?\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e1x Pair of 4-into-1 Headers (1 5\/8\" Primaries)\u003c\/li\u003e\n    \u003cli\u003e2x 2.5\" Metallic High-Flow 100-Cell Catalytic Converters\u003c\/li\u003e\n    \u003cli\u003eGasket and Bolt Kit for Header-to-Cat connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFeatures:\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e4-into-1 Design:\u003c\/strong\u003e 1 5\/8\" primary pipes for balanced flow and improved mid-range torque.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHigh-Flow Metallic Cats:\u003c\/strong\u003e 100-cell substrate for maximum exhaust velocity while maintaining performance.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e201 Grade Stainless Steel:\u003c\/strong\u003e Non-polished finish for heavy-duty durability.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRWD Compatibility:\u003c\/strong\u003e Specifically suits VT-VZ LS1 RWD sedan, ute, and wagon variants.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePerformance Ready:\u003c\/strong\u003e Designed to integrate seamlessly with Xforce cat-back systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant Installation Notes:\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eO2 Extensions:\u003c\/strong\u003e O2 sensor extension looms are required for installation (sold separately).\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDyno Usage:\u003c\/strong\u003e Tuning pipes must be used in place of catalytic converters when running the vehicle on a Dyno to prevent substrate damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications:\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMake:\u003c\/strong\u003e Holden\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Commodore, Statesman, Caprice\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e VT, VX, VU, VY, WL\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 5.7L LS1 V8\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrimary Pipe Size:\u003c\/strong\u003e 1 5\/8\"\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCollector\/Cat Size:\u003c\/strong\u003e 2.5\"\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 201 Stainless Steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe image shown may not reflect the actual product\u003c\/li\u003e\n\u003cli\u003eShipping times may vary depending on destination and stock availability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eVehicle Applications:\u003c\/h3\u003e\n\u003cdiv style=\"font-family: Arial, sans-serif; max-width: 100%; padding: 20px; border: 1px solid #ccc; border-radius: 5px; font-size: 1.1rem;\"\u003e\n\u003cstrong\u003eVehicle Applications for XForce H2-HV12B-KIT\u003c\/strong\u003e\n\u003cdiv style=\"width: 100%; overflow-x: auto; margin-bottom: 10px;\"\u003e\n\u003ctable style=\"min-width: 900px; border-collapse: collapse; font-size: 1.1rem; line-height: 1.5; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f0f0f0; border-bottom: 3px solid #333;\"\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eMake\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eFrom\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eTo\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eBody\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eSeries\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eEngine\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eVariant\u003c\/th\u003e\n\u003cth style=\"padding: 10px 5px; text-align: left;\"\u003eDrivetrain\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd style=\"padding: 8px 5px; background-color: #e9e9e9; font-weight: bold;\" colspan=\"9\"\u003eHOLDEN\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHOLDEN\u003c\/td\u003e\n\u003ctd\u003eCAPRICE\u003c\/td\u003e\n\u003ctd\u003e06\/1999\u003c\/td\u003e\n\u003ctd\u003e01\/2006\u003c\/td\u003e\n\u003ctd\u003eSedan\u003c\/td\u003e\n\u003ctd\u003eWH, WK, WL\u003c\/td\u003e\n\u003ctd\u003eLS1 | 5.7L\u003c\/td\u003e\n\u003ctd\u003ei V8\u003c\/td\u003e\n\u003ctd\u003eRWD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHOLDEN\u003c\/td\u003e\n\u003ctd\u003eCOMMODORE\u003c\/td\u003e\n\u003ctd\u003e06\/1999\u003c\/td\u003e\n\u003ctd\u003e12\/2007\u003c\/td\u003e\n\u003ctd\u003eSedan\/Ute\/Wagon\u003c\/td\u003e\n\u003ctd\u003eVT, VX, VU, VY, VZ\u003c\/td\u003e\n\u003ctd\u003eLS1 | 5.7L\u003c\/td\u003e\n\u003ctd\u003eAll V8 Variants\u003c\/td\u003e\n\u003ctd\u003eRWD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHOLDEN\u003c\/td\u003e\n\u003ctd\u003eSTATESMAN\u003c\/td\u003e\n\u003ctd\u003e06\/1999\u003c\/td\u003e\n\u003ctd\u003e07\/2006\u003c\/td\u003e\n\u003ctd\u003eSedan\u003c\/td\u003e\n\u003ctd\u003eWH, WK, WL\u003c\/td\u003e\n\u003ctd\u003eLS1 | 5.7L\u003c\/td\u003e\n\u003ctd\u003ei V8\u003c\/td\u003e\n\u003ctd\u003eRWD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cstyle\u003e\n.warranty-table-wrapper { overflow-x: auto; margin: 20px 0; }\n.warranty-table { width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; min-width: 400px; }\n.warranty-table th { background-color: #111; color: #fff; text-align: left; padding: 12px; }\n.warranty-table td { padding: 12px; border-bottom: 1px solid #ddd; }\n.warranty-table tr:nth-child(even) { background-color: #f9f9f9; }\n.warranty-table tr:hover { background-color: #f1f1f1; }\n.warranty-title { font-size: 18px; font-weight: bold; margin-bottom: 10px; font-family: Arial, sans-serif; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"warranty-title\"\u003eWarranty Information\u003c\/div\u003e\n\u003cdiv class=\"warranty-table-wrapper\"\u003e\n  \u003ctable class=\"warranty-table\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003cth\u003eWarranty Period\u003c\/th\u003e\n\u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003e304 \u0026amp; 201 Stainless Steel Exhaust Systems\u003c\/td\u003e\n\u003ctd\u003e60 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eAccessories\u003c\/td\u003e\n\u003ctd\u003e12 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCatalytic Converters\u003c\/td\u003e\n\u003ctd\u003e12 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eElectronic Products (Including SmartBox)\u003c\/td\u003e\n\u003ctd\u003e12 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMild Steel \u0026amp; 409 Stainless Steel Exhaust Systems\u003c\/td\u003e\n\u003ctd\u003e24 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMild Steel Headers\u003c\/td\u003e\n\u003ctd\u003e12 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eStainless Steel Headers\u003c\/td\u003e\n\u003ctd\u003e24 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eUniversal 304 Stainless Steel Mufflers\u003c\/td\u003e\n\u003ctd\u003e24 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eUniversal Mild Steel \u0026amp; 409 Stainless Steel Mufflers\u003c\/td\u003e\n\u003ctd\u003e12 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cstrong\u003ePayment \u0026amp; Security:\u003c\/strong\u003e\u003cbr\u003eYour payment information is processed securely. We do not store credit card details nor have access to your credit card information.\u003c\/p\u003e","brand":"XForce","offers":[{"title":"Default Title","offer_id":45721742049442,"sku":"H2-HV12B-KIT","price":1215.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0576\/1112\/4898\/files\/H2-HV12-KITB-F.pngw3.webp?v=1753949818","url":"https:\/\/nationaltowbars.com.au\/products\/xforce-holden-vt-vz-v8-5-7l-sedan-1997-2006-stainless-steel-header-1-5-8-inch-primary-2-1-2-inch-metallic-cats-100-cell","provider":"National Towbars Australia","version":"1.0","type":"link"}