{"product":{"id":11350204973398,"title":"Kooks GM 1500 \/ SUV 6.2L Header and Y-Pipe Kits","body_html":"\u003ch2\u003eMake more of the V8 in your truck or SUV\u003c\/h2\u003e\u003cp\u003eBring a matched Kooks header and Y-pipe upgrade to your 6.2-litre GM. These kits pair 1-7\/8\" long tube headers with a 3\" Y-pipe, finishing at the 3-1\/2\" OEM rear interface. Choose Performance or GREEN cats for the listed 2014-2018 trucks and 2015-2020 SUVs.\u003c\/p\u003e\u003cp\u003eSKUs: 2861H420, 2861H430\u003c\/p\u003e\u003ch2\u003eChoose around the engine you use\u003c\/h2\u003e\u003cp\u003eBoth packages use the same primary size and rear connection. The Performance-catted 2861H420 is for naturally aspirated engines, while GREEN-catted 2861H430 supports forced induction. That is a useful choice if a supercharger is fitted or planned.\u003c\/p\u003e\u003ch2\u003eKeep the rear exhaust you already enjoy\u003c\/h2\u003e\u003cp\u003eThe 3-1\/2\" OEM rear outlet joins a compatible factory-style rear system. You can upgrade the headers and front pipework together while keeping the cat-back you already like.\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\u003e2861H420\u003c\/td\u003e\n\u003ctd\u003eEngine Size: 6.2L; Header Size: 1-7\/8\"; Cat Type: Performance Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; Performance Cats front connections\u003c\/td\u003e\n\u003ctd\u003eNaturally aspirated only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2861H430\u003c\/td\u003e\n\u003ctd\u003eEngine Size: 6.2L; Header Size: 1-7\/8\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats front connections\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\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\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade ESV Premium\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade ESV Platinum\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade ESV Luxury\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade ESV Base\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade ESV Premium Luxury\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade Platinum\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade Luxury\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade Base\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2017\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade Premium\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017-2020\u003c\/td\u003e\n\u003ctd\u003eCadillac Escalade Premium Luxury\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Suburban Premier\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 LTZ\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 1500 High Country\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018-2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet Tahoe Premier\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2020\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon XL SLT\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 SLT\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eGMC Sierra 1500 Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019-2020\u003c\/td\u003e\n\u003ctd\u003eGMC Yukon SLT\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e2861H420, 2861H430\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\u003e2861H420, 2861H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplications\u003c\/td\u003e\n\u003ctd\u003e2014-2018 GM 1500 trucks; listed 2015-2020 SUVs, 6.2L 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\u003eSupplied Y-pipe\u003c\/td\u003e\n\u003ctd\u003e3\" Performance or GREEN catted\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\u003ePerformance catalyst 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\u003eWhich kit suits a supercharged engine?\u003c\/h3\u003e\u003cp\u003eChoose the GREEN-catted 2861H430 from these options.\u003c\/p\u003e\u003ch3\u003eAre the truck and SUV years the same?\u003c\/h3\u003e\u003cp\u003eNo. The truck range is 2014-2018; the listed SUV applications use their own 2015-2020 trim ranges in the table.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e2861H420: Competition, 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":"2026-10-08T10:40:58+01:00","handle":"kooks-2014-2018-gm-1500-series-header-connection-kits-00b388c0","updated_at":"2026-10-10T19:11:09+01:00","published_at":"2026-10-09T13:44:18+01:00","template_suffix":null,"published_scope":"global","tags":"brand:kooks, cat:exhausts, dept:performance-parts, fits:cadillac-escalade, fits:cadillac-escalade-esv, fits:chevrolet-silverado-1500, fits:chevrolet-suburban, fits:chevrolet-tahoe, fits:gmc-sierra-1500, fits:gmc-yukon, fits:gmc-yukon-xl, make:cadillac, make:chevrolet, make:gmc, type:header-kit","variants":[{"id":55646891376982,"product_id":11350204973398,"title":"6.2L \/ 1-7\/8\" \/ Performance Cats","price":"3490.92","sku":"2861H420","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"6.2L","option2":"1-7\/8\"","option3":"Performance Cats","created_at":"2026-10-08T10:40:58+01:00","updated_at":"2026-10-10T19:11:09+01:00","taxable":true,"barcode":"842422178574","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":[]},{"id":55646891409750,"product_id":11350204973398,"title":"6.2L \/ 1-7\/8\" \/ GREEN Cats","price":"4058.91","sku":"2861H430","position":2,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"6.2L","option2":"1-7\/8\"","option3":"GREEN Cats","created_at":"2026-10-08T10:40:58+01:00","updated_at":"2026-10-10T19:11:09+01:00","taxable":true,"barcode":"842422178581","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":14512385622358,"product_id":11350204973398,"name":"Engine Size","position":1,"values":["6.2L"]},{"id":14512385655126,"product_id":11350204973398,"name":"Header Size","position":2,"values":["1-7\/8\""]},{"id":14512385687894,"product_id":11350204973398,"name":"Cat Type","position":3,"values":["Performance Cats","GREEN Cats"]}],"images":[{"id":86449189060950,"product_id":11350204973398,"position":1,"created_at":"2026-10-08T10:40:58+01:00","updated_at":"2026-10-08T10:41:01+01:00","alt":"Kooks 2014-2018 GM 1500 Series Header\/Connection Kits - 2861H420, 2861H430","width":1500,"height":1500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/4d0eb87562406b568adf94b6bae459a0_475ef35a-4f9d-47da-b6d6-1accbdc1f23c.jpg?v=1791452461","variant_ids":[]},{"id":86449189093718,"product_id":11350204973398,"position":2,"created_at":"2026-10-08T10:40:58+01:00","updated_at":"2026-10-08T10:41:00+01:00","alt":"Kooks 2014-2018 GM 1500 Series Header\/Connection Kits - 2861H420, 2861H430","width":1500,"height":1500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f005cc8598a9e5197e6da787fed92229_f47acb5f-ea9d-43f7-8974-09f25896d046.jpg?v=1791452460","variant_ids":[]},{"id":86449189126486,"product_id":11350204973398,"position":3,"created_at":"2026-10-08T10:40:58+01:00","updated_at":"2026-10-08T10:41:01+01:00","alt":"Kooks 2014-2018 GM 1500 Series Header\/Connection Kits - 2861H420, 2861H430","width":1500,"height":1500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f005cc8598a9e5197e6da787fed92229_9aa1a541-5b95-4809-ba95-ce1ab4cc59c7.jpg?v=1791452461","variant_ids":[]},{"id":86449189159254,"product_id":11350204973398,"position":4,"created_at":"2026-10-08T10:40:58+01:00","updated_at":"2026-10-08T10:41:00+01:00","alt":"Kooks 2014-2018 GM 1500 Series Header\/Connection Kits - 2861H420, 2861H430","width":1500,"height":1500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f005cc8598a9e5197e6da787fed92229_58e30011-b733-4131-a14b-4b87f7c171c5.jpg?v=1791452460","variant_ids":[]},{"id":86449189192022,"product_id":11350204973398,"position":5,"created_at":"2026-10-08T10:40:58+01:00","updated_at":"2026-10-08T10:41:00+01:00","alt":"Kooks 2014-2018 GM 1500 Series Header\/Connection Kits - 2861H420, 2861H430","width":1500,"height":1500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/f005cc8598a9e5197e6da787fed92229_577118de-14ea-49f6-b43b-ba401aeee2ee.jpg?v=1791452460","variant_ids":[]}],"image":{"id":86449189060950,"product_id":11350204973398,"position":1,"created_at":"2026-10-08T10:40:58+01:00","updated_at":"2026-10-08T10:41:01+01:00","alt":"Kooks 2014-2018 GM 1500 Series Header\/Connection Kits - 2861H420, 2861H430","width":1500,"height":1500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/4d0eb87562406b568adf94b6bae459a0_475ef35a-4f9d-47da-b6d6-1accbdc1f23c.jpg?v=1791452461","variant_ids":[]}}}