{"product":{"id":11350206349654,"title":"Kooks GM 1500 6.2L Performance-Catted Header and Y-Pipe Kit (2019+) | 2863H420","body_html":"\u003ch2\u003eA matched exhaust upgrade for your naturally aspirated 6.2\u003c\/h2\u003e\u003cp\u003eBring Kooks long tube headers and a catted Y-pipe to your 6.2-litre GM truck as one matched upgrade. The 1-7\/8\" primaries, 3\" collectors and 3-1\/2\" OEM rear outlet give you a clear specification for improving the front exhaust while retaining the rear system.\u003c\/p\u003e\u003cp\u003eSKU: 2863H420\u003c\/p\u003e\u003ch2\u003eHeaders and Y-pipe in one kit\u003c\/h2\u003e\u003cp\u003eThe stainless steel Y-pipe is supplied with the headers and uses the rear outlet for the listed 6.2-litre configuration. You can keep a rear exhaust that uses the factory 3-1\/2\" interface, rather than adding a new cat-back to complete this purchase.\u003c\/p\u003e\u003ch2\u003eChoose Performance cats for a naturally aspirated build\u003c\/h2\u003e\u003cp\u003eThis package uses standard Performance cats. They are intended for naturally aspirated applications. For a truck with a supercharger or turbocharger, choose a suitable GREEN-family catalyst package so the front exhaust matches the engine you are building.\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\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 High Country\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LTZ\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 RST\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LT Trail Boss\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022-2024\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 ZR2\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 AT4\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2024\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021-2023\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2863H420\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\u003e2863H420\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\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\u003eConnections\u003c\/td\u003e\n\u003ctd\u003e3\" Performance-catted Y-pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e3-1\/2\" OEM 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\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs the Y-pipe included?\u003c\/h3\u003e\u003cp\u003eYes. This is the header-and-catted-Y-pipe kit.\u003c\/p\u003e\u003ch3\u003eCan I use the Performance cats with a supercharger?\u003c\/h3\u003e\u003cp\u003eChoose a catalyst specification intended for forced induction. This Performance-catted package is for a naturally aspirated engine.\u003c\/p\u003e\u003ch3\u003eDo you recommend tuning with these headers?\u003c\/h3\u003e\u003cp\u003eWe recommend tuning with every header installation. \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/pages\/contact\"\u003eTalk to us\u003c\/a\u003e about calibration for your vehicle, exhaust and other modifications.\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":"2026-10-08T10:41:02+01:00","handle":"kooks-2019-gm-1500-series-header-connection-kits-868b88dc","updated_at":"2026-10-10T18:29:41+01:00","published_at":"2026-10-09T13:43:34+01:00","template_suffix":null,"published_scope":"global","tags":"brand:kooks, cat:exhausts, dept:performance-parts, fits:cadillac-escalade, fits:chevrolet-silverado-1500, fits:chevrolet-suburban, fits:gmc-sierra-1500, fits:gmc-yukon, fits:gmc-yukon-xl, make:cadillac, make:chevrolet, make:gmc, type:header-kit","variants":[{"id":55646893310294,"product_id":11350206349654,"title":"6.2L \/ 1-7\/8\" \/ Performance Cats","price":"4137.78","sku":"2863H420","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"6.2L","option2":"1-7\/8\"","option3":"Performance Cats","created_at":"2026-10-08T10:41:03+01:00","updated_at":"2026-10-10T18:29:41+01:00","taxable":true,"barcode":"842422178635","grams":27669,"image_id":null,"weight":27.669,"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":14512387588438,"product_id":11350206349654,"name":"Engine Size","position":1,"values":["6.2L"]},{"id":14512387621206,"product_id":11350206349654,"name":"Header Size","position":2,"values":["1-7\/8\""]},{"id":14512387653974,"product_id":11350206349654,"name":"Cat Type","position":3,"values":["Performance Cats"]}],"images":[{"id":86449196990806,"product_id":11350206349654,"position":1,"created_at":"2026-10-08T10:41:03+01:00","updated_at":"2026-10-08T10:41:06+01:00","alt":"Kooks 1-7\/8\" Header and Catted Connection Kit. 2019-2023 GM 1500 Series Truck 6.2L.","width":3416,"height":2683,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/5e8d8a527404da993c9b14fca0e8fd49_a612552b-5bf1-4edd-ac9b-f63518797c60.png?v=1791452466","variant_ids":[]},{"id":86449197023574,"product_id":11350206349654,"position":2,"created_at":"2026-10-08T10:41:03+01:00","updated_at":"2026-10-08T10:41:06+01:00","alt":"Kooks 1-7\/8\" Header and Catted Connection Kit. 2019-2023 GM 1500 Series Truck 6.2L.","width":5008,"height":3336,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/61be6f965719a5cbac8fc14b122c49fa_1c00ed97-1f40-4acf-88f3-ce13376b4d2a.jpg?v=1791452466","variant_ids":[]},{"id":86449197056342,"product_id":11350206349654,"position":3,"created_at":"2026-10-08T10:41:03+01:00","updated_at":"2026-10-08T10:41:05+01:00","alt":"Kooks 1-7\/8\" Header and Catted Connection Kit. 2019-2023 GM 1500 Series Truck 6.2L.","width":1500,"height":1500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f005cc8598a9e5197e6da787fed92229_4f90dde2-65d8-45fb-baa1-3ad7bc807bb3.jpg?v=1791452465","variant_ids":[]},{"id":86449197089110,"product_id":11350206349654,"position":4,"created_at":"2026-10-08T10:41:03+01:00","updated_at":"2026-10-08T10:41:05+01:00","alt":"Kooks 1-7\/8\" Header and Catted Connection Kit. 2019-2023 GM 1500 Series Truck 6.2L.","width":1500,"height":1500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f005cc8598a9e5197e6da787fed92229_1e22fc8d-5f3c-4a08-82bd-a10b28fea630.jpg?v=1791452465","variant_ids":[]}],"image":{"id":86449196990806,"product_id":11350206349654,"position":1,"created_at":"2026-10-08T10:41:03+01:00","updated_at":"2026-10-08T10:41:06+01:00","alt":"Kooks 1-7\/8\" Header and Catted Connection Kit. 2019-2023 GM 1500 Series Truck 6.2L.","width":3416,"height":2683,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/5e8d8a527404da993c9b14fca0e8fd49_a612552b-5bf1-4edd-ac9b-f63518797c60.png?v=1791452466","variant_ids":[]}}}