{"product":{"id":11350205858134,"title":"Kooks GM 1500 6.2 Y-Pipes, 3-1\/2-inch OEM Outlet (2019+)","body_html":"\u003ch2\u003eFinish your 6.2-litre header upgrade with the correct Y-pipe\u003c\/h2\u003e\u003cp\u003eConnect your Kooks long tube headers to the OEM rear exhaust with a 3\" stainless Y-pipe and the 3-1\/2\" rear outlet for the supported 6.2-litre GM applications. Choose Competition Only, Performance or GREEN catalysts, with the fitting clamps supplied.\u003c\/p\u003e\u003cp\u003eSKUs: 28633100, 28633200, 28633300\u003c\/p\u003e\u003ch2\u003eThe 6.2-litre rear interface\u003c\/h2\u003e\u003cp\u003eThese pipes use a ball-and-socket header connection and a 3-1\/2\" OEM rear outlet. The supplied clamps secure the front pipework, while the OEM hardware is reused at the rear connection. The 5.3-litre Y-pipes have a different rear outlet size.\u003c\/p\u003e\u003ch2\u003eChoose the catalyst for your engine\u003c\/h2\u003e\u003cp\u003ePerformance uses the 300-cell standard catalyst specification on these SKUs and is for naturally aspirated use. GREEN uses 400-cell cats and supports forced induction. Competition Only is the uncatted choice for competition use. All require Kooks long tube headers.\u003c\/p\u003e\u003ch2\u003eChoose your configuration\u003c\/h2\u003e\u003cdiv class=\"table-scroll\"\u003e\u003ctable class=\"variant-comparison\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSKU\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eConfiguration\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSupplied arrangement\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eFitting \/ engine conditions\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e28633100\u003c\/td\u003e\n\u003ctd\u003eModel Year: 2019-2023; Engine Size: 6.2L; Cat Type: Comp. Only\u003c\/td\u003e\n\u003ctd\u003eCompetition Only connection assembly; Clamps included; OEM rear hardware reused\u003c\/td\u003e\n\u003ctd\u003eUncatted; competition use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e28633200\u003c\/td\u003e\n\u003ctd\u003eModel Year: 2019-2023; Engine Size: 6.2L; Cat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003ePerformance Cats connection assembly; Clamps included; OEM rear hardware reused\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e28633300\u003c\/td\u003e\n\u003ctd\u003eModel Year: 2019-2023; Engine Size: 6.2L; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003eGREEN Cats connection assembly; Clamps included; OEM rear hardware reused\u003c\/td\u003e\n\u003ctd\u003eUse the SKU-specific vehicle rows below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eMatching products\u003c\/h2\u003e\u003cp\u003eThe \u003ca href=\"https:\/\/hooniesadrenaline.co.uk\/products\/kooks-2014-gm-1500-headers-1fdd21a6?variant=55646889836886\"\u003eGM 1500 long tube headers\u003c\/a\u003e provide a matching front component. Pair them with the Y-pipe for the engine, vehicle years and rear outlet shown on this page.\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\u003e28633100, 28633200, 28633300\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\u003e28633100, 28633200, 28633300\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\u003e28633100, 28633200, 28633300\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\u003e28633100, 28633200, 28633300\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\u003e28633100, 28633200, 28633300\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\u003e28633100, 28633200, 28633300\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\u003e28633100, 28633200, 28633300\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\u003e28633100, 28633200, 28633300\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\u003e28633100, 28633200, 28633300\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\u003e28633100, 28633200, 28633300\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\u003e28633100, 28633200, 28633300\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\u003e28633100, 28633200, 28633300\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\u003eSKUs\u003c\/td\u003e\n\u003ctd\u003e28633100, 28633200, 28633300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003eListed 6.2L GM 1500 trucks from 2019 and SUVs from 2021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e3\" 16-gauge 304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader joint\u003c\/td\u003e\n\u003ctd\u003eBall and socket; matching Kooks long tube headers required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear outlet\u003c\/td\u003e\n\u003ctd\u003e3-1\/2\" OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalyst choices\u003c\/td\u003e\n\u003ctd\u003eCompetition Only; Performance 300 cell; GREEN 400 cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamps \/ hardware\u003c\/td\u003e\n\u003ctd\u003eClamps included; OEM rear hardware reused\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePerformance 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 this the same rear outlet as the 5.3-litre version?\u003c\/h3\u003e\u003cp\u003eThe 6.2-litre pipes have a 3-1\/2\" OEM outlet. The corresponding 5.3-litre pipes use 2-3\/4\".\u003c\/p\u003e\u003ch3\u003eCan I fit it under the factory manifolds?\u003c\/h3\u003e\u003cp\u003eThese Y-pipes require matching Kooks long tube headers.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e28633100, 28633200: Competition, off-road and track use only. Not for use on public roads.\u003c\/p\u003e\u003cp\u003eThe competition-use waiver applies to 28633100.\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":"Exhaust Pipes","created_at":"2026-10-08T10:41:01+01:00","handle":"kooks-2014-gm-1500-y-pipes-51c0f588","updated_at":"2026-10-10T20:00:17+01:00","published_at":"2026-10-09T13:43:48+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:exhaust-pipe","variants":[{"id":55646892556630,"product_id":11350205858134,"title":"2019-2023 \/ 6.2L \/ Comp. Only","price":"2230.35","sku":"28633100","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"2019-2023","option2":"6.2L","option3":"Comp. Only","created_at":"2026-10-08T10:41:01+01:00","updated_at":"2026-10-10T20:00:17+01:00","taxable":true,"barcode":"842422173784","grams":11340,"image_id":null,"weight":11.34,"weight_unit":"kg","requires_shipping":true,"quantity_rule":{"min":1,"max":null,"increment":1},"price_currency":"GBP","compare_at_price_currency":"","quantity_price_breaks":[]},{"id":55646892589398,"product_id":11350205858134,"title":"2019-2023 \/ 6.2L \/ Performance Cats","price":"2514.34","sku":"28633200","position":2,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"2019-2023","option2":"6.2L","option3":"Performance Cats","created_at":"2026-10-08T10:41:01+01:00","updated_at":"2026-10-10T20:00:17+01:00","taxable":true,"barcode":"842422173791","grams":13154,"image_id":null,"weight":13.154,"weight_unit":"kg","requires_shipping":true,"quantity_rule":{"min":1,"max":null,"increment":1},"price_currency":"GBP","compare_at_price_currency":"","quantity_price_breaks":[]},{"id":55646892622166,"product_id":11350205858134,"title":"2019-2023 \/ 6.2L \/ GREEN Cats","price":"3082.33","sku":"28633300","position":3,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"2019-2023","option2":"6.2L","option3":"GREEN Cats","created_at":"2026-10-08T10:41:01+01:00","updated_at":"2026-10-10T20:00:17+01:00","taxable":true,"barcode":"842422173807","grams":13154,"image_id":null,"weight":13.154,"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":14512386834774,"product_id":11350205858134,"name":"Model Year","position":1,"values":["2019-2023"]},{"id":14512386867542,"product_id":11350205858134,"name":"Engine Size","position":2,"values":["6.2L"]},{"id":14512386900310,"product_id":11350205858134,"name":"Cat Type","position":3,"values":["Comp. 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