{"product":{"id":11350221881686,"title":"Kooks Chevrolet SSR Header and Performance Y-Pipe Kit (2003-2006) | 2730H420","body_html":"\u003ch2\u003eLet your SSR sound as distinctive as it looks\u003c\/h2\u003e\u003cp\u003eGive your SSR a coordinated front exhaust upgrade with Kooks 1-7\/8\" long tube headers and a Performance-catted Y-pipe. The kit covers the listed 5.3-litre LM4 and 6.0-litre LS2 applications, connecting to the OEM rear exhaust.\u003c\/p\u003e\u003cp\u003eSKU: 2730H420\u003c\/p\u003e\u003ch2\u003eA package for both SSR V8 applications\u003c\/h2\u003e\u003cp\u003eThe stainless headers use 3\" collectors and the supplied Y-pipe has 3\" front pipework with an OEM outlet. The fitment table separates the 2003-2004 5.3 from the 2005-2006 6.0, keeping the year and engine details easy to find.\u003c\/p\u003e\u003ch2\u003eRetain a compatible rear exhaust\u003c\/h2\u003e\u003cp\u003eThe OEM rear interface lets a compatible cat-back remain in place. The supplied Performance cats suit naturally aspirated engines, so choose a different catalyst arrangement if your SSR is running forced induction.\u003c\/p\u003e\u003ch2\u003eFitting your exhaust\u003c\/h2\u003e\u003cp\u003eInstallation includes removal of the original starter heat shield.\u003c\/p\u003e\u003ch2\u003eTuning for your exhaust upgrade\u003c\/h2\u003e\u003cp\u003eWe recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eContact us\u003c\/a\u003e to discuss the right tuning route for your vehicle.\u003c\/p\u003e\u003ch2\u003eVehicle fitment\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"vehicle-fitment\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eYears\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eVehicle \/ trim\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eEngine\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eApplicable SKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2004\u003c\/td\u003e\n\u003ctd\u003eChevrolet SSR Base\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003e2730H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005-2006\u003c\/td\u003e\n\u003ctd\u003eChevrolet SSR Base\u003c\/td\u003e\n\u003ctd\u003e6.0L V8\u003c\/td\u003e\n\u003ctd\u003e2730H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"technical-specifications\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e2730H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003e2003-2004 SSR LM4 5.3L; 2005-2006 SSR LS2 6.0L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeaders\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" primaries; 3\" collectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eY-pipe\u003c\/td\u003e\n\u003ctd\u003e3\" Performance-catted stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003eOEM interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst condition\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitting change\u003c\/td\u003e\n\u003ctd\u003eOriginal starter heat shield removed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eDoes it cover both SSR engine sizes?\u003c\/h3\u003e\u003cp\u003eYes, for the years shown: 5.3 litres in 2003-2004 and 6.0 litres in 2005-2006.\u003c\/p\u003e\u003ch3\u003eIs the rear exhaust included?\u003c\/h3\u003e\u003cp\u003eThe kit supplies the headers and front Y-pipe, joining the OEM rear exhaust interface.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003eCompetition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003ch2\u003eOrdering and delivery\u003c\/h2\u003e\u003cp\u003eEstimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.\u003c\/p\u003e","vendor":"Kooks","product_type":"Header Kits","created_at":"2026-10-08T10:42:04+01:00","handle":"kooks-2730h420","updated_at":"2026-10-10T19:09:34+01:00","published_at":"2026-10-09T13:34:25+01:00","template_suffix":null,"published_scope":"global","tags":"brand:kooks, cat:exhausts, dept:performance-parts, fits:chevrolet-ssr, make:chevrolet, type:header-kit","variants":[{"id":55646919426390,"product_id":11350221881686,"title":"Default Title","price":"3302.10","sku":"2730H420","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Default Title","option2":null,"option3":null,"created_at":"2026-10-08T10:42:04+01:00","updated_at":"2026-10-10T19:09:34+01:00","taxable":true,"barcode":"842422178826","grams":24948,"image_id":null,"weight":24.948,"weight_unit":"kg","requires_shipping":true,"quantity_rule":{"min":1,"max":null,"increment":1},"price_currency":"GBP","compare_at_price_currency":"","quantity_price_breaks":[]}],"options":[{"id":14512406298966,"product_id":11350221881686,"name":"Title","position":1,"values":["Default Title"]}],"images":[{"id":86449346806102,"product_id":11350221881686,"position":1,"created_at":"2026-10-08T10:42:04+01:00","updated_at":"2026-10-08T10:42:07+01:00","alt":"Kooks 1-7\/8\" Header and Catted Connection Kit. 2003-2006 Chevrolet SSR 5.3L\/6.0L.","width":1500,"height":1500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/8fa9426497bf2af12d6d78b7a47dc932.jpg?v=1791452527","variant_ids":[]},{"id":86449346838870,"product_id":11350221881686,"position":2,"created_at":"2026-10-08T10:42:04+01:00","updated_at":"2026-10-08T10:42:07+01:00","alt":"Kooks 1-7\/8\" Header and Catted Connection Kit. 2003-2006 Chevrolet SSR 5.3L\/6.0L.","width":1500,"height":1500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/1c4103ca723c9b9d9b5f21e1f779c258_8c839c8e-3e58-4ec9-9048-106194771129.jpg?v=1791452527","variant_ids":[]}],"image":{"id":86449346806102,"product_id":11350221881686,"position":1,"created_at":"2026-10-08T10:42:04+01:00","updated_at":"2026-10-08T10:42:07+01:00","alt":"Kooks 1-7\/8\" Header and Catted Connection Kit. 2003-2006 Chevrolet SSR 5.3L\/6.0L.","width":1500,"height":1500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/8fa9426497bf2af12d6d78b7a47dc932.jpg?v=1791452527","variant_ids":[]}}}