{"product":{"id":11350223257942,"title":"Kooks Ford F-150 Coyote 5.0 Header and Y-Pipe Kits (2021-2026)","body_html":"\u003ch2\u003eMake your Coyote truck more enjoyable every time you use it\u003c\/h2\u003e\u003cp\u003eUpgrade the front exhaust on your 5.0 F-150 with Kooks headers and a matching Y-pipe. Choose 1-3\/4-inch headers with GREEN cats, or 1-7\/8-inch headers with Performance or GREEN cats. Each joins the OEM rear exhaust, so you can keep your existing cat-back.\u003c\/p\u003e\u003cp\u003eSKUs: 1371H230, 1371H420, 1371H430\u003c\/p\u003e\u003ch2\u003eChoose the complete combination\u003c\/h2\u003e\u003cp\u003eA smaller primary is not automatically the lesser choice. Choose the 1-3\/4\" or 1-7\/8\" header around your engine and modifications, then choose the catalyst for your intended use. The Performance-catted kit is for naturally aspirated applications; GREEN supports forced induction.\u003c\/p\u003e\u003ch2\u003eA useful route to keep your rear exhaust\u003c\/h2\u003e\u003cp\u003eBoth primary sizes use 3\" collectors and a supplied Y-pipe to the OEM rear connection. The 1-7\/8\" GREEN kit expressly includes the gaskets, bolts and O2 extensions needed for installation. Match the complete kit to your 2021-2026 truck rather than using an earlier F-150 package.\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\u003e1371H230\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-3\/4\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" 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\u003ctr\u003e\n\u003ctd\u003e1371H420\u003c\/td\u003e\n\u003ctd\u003eHeader 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\u003e1371H430\u003c\/td\u003e\n\u003ctd\u003eHeader Size: 1-7\/8\"; Cat Type: GREEN Cats\u003c\/td\u003e\n\u003ctd\u003e1-7\/8\" headers; GREEN Cats front connections; Gaskets, bolts and O2 extensions included\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\u003eFitting your exhaust\u003c\/h2\u003e\u003cp\u003eOn 2018-on F-150s, the driver-side motor-mount heat shield should be removed or modified to give the header primaries enough clearance.\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\u003ctr\u003e\n\u003ctd\u003e2021-2026\u003c\/td\u003e\n\u003ctd\u003eFord F-150\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e1371H230, 1371H420, 1371H430\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\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\u003e1371H230, 1371H420, 1371H430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003e2021-2026 F-150, 5.0L Coyote 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\u003ePrimary choices\u003c\/td\u003e\n\u003ctd\u003e1-3\/4\" GREEN; 1-7\/8\" Performance or GREEN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollectors\/Y-pipe\u003c\/td\u003e\n\u003ctd\u003e3\" collectors; matching Y-pipe to OEM rear exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1371H430 fitting parts\u003c\/td\u003e\n\u003ctd\u003eGaskets, bolts and O2 extensions included\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\u003ctr\u003e\n\u003ctd\u003e2018-on fitting provision\u003c\/td\u003e\n\u003ctd\u003eDriver-side motor-mount heat-shield removal or modification recommended for primary-tube clearance\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\u003eWhat changes between the three SKUs?\u003c\/h3\u003e\u003cp\u003e1371H230 uses 1-3\/4\" headers with GREEN cats. 1371H420 uses 1-7\/8\" with Performance cats. 1371H430 uses 1-7\/8\" with GREEN cats.\u003c\/p\u003e\u003ch3\u003eIs the original cat-back retained?\u003c\/h3\u003e\u003cp\u003eThe supplied Y-pipe connects to the OEM rear exhaust interface, so a compatible rear system can stay.\u003c\/p\u003e\u003ch2\u003eIntended use\u003c\/h2\u003e\u003cp\u003e1371H420: 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":"2026-10-08T10:42:21+01:00","handle":"kooks-2021-f150-5-0l-header-conn-kits-f93def51","updated_at":"2026-10-10T17:51:32+01:00","published_at":"2026-10-09T13:33:41+01:00","template_suffix":null,"published_scope":"global","tags":"brand:kooks, cat:exhausts, dept:performance-parts, fits:ford-f-150, make:ford, type:header-kit","variants":[{"id":55646922703190,"product_id":11350223257942,"title":"1-3\/4\" \/ GREEN Cats","price":"3990.48","sku":"1371H230","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"1-3\/4\"","option2":"GREEN Cats","option3":null,"created_at":"2026-10-08T10:42:21+01:00","updated_at":"2026-10-10T17:51:32+01:00","taxable":true,"barcode":"842422180867","grams":30391,"image_id":null,"weight":30.391,"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":55646922735958,"product_id":11350223257942,"title":"1-7\/8\" \/ Performance Cats","price":"3497.15","sku":"1371H420","position":2,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"1-7\/8\"","option2":"Performance Cats","option3":null,"created_at":"2026-10-08T10:42:21+01:00","updated_at":"2026-10-10T17:51:32+01:00","taxable":true,"barcode":"842422180874","grams":30391,"image_id":null,"weight":30.391,"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":55646922768726,"product_id":11350223257942,"title":"1-7\/8\" \/ GREEN Cats","price":"4065.14","sku":"1371H430","position":3,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"1-7\/8\"","option2":"GREEN Cats","option3":null,"created_at":"2026-10-08T10:42:21+01:00","updated_at":"2026-10-10T17:51:32+01:00","taxable":true,"barcode":"842422180881","grams":30391,"image_id":null,"weight":30.391,"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":14512407806294,"product_id":11350223257942,"name":"Header Size","position":1,"values":["1-3\/4\"","1-7\/8\""]},{"id":14512407839062,"product_id":11350223257942,"name":"Cat Type","position":2,"values":["GREEN Cats","Performance Cats"]}],"images":[{"id":86449372528982,"product_id":11350223257942,"position":1,"created_at":"2026-10-08T10:42:21+01:00","updated_at":"2026-10-08T10:42:26+01:00","alt":"Kooks 2021+ F150 5.0L Header\/Connection Kits - 1371H230, 1371H420, 1371H430","width":3375,"height":3375,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1a012d5add03a8111cc0611020855b5_05ed33fe-ff3f-4c20-8a0e-7a7ac6f055cd.png?v=1791452546","variant_ids":[]},{"id":86449372561750,"product_id":11350223257942,"position":2,"created_at":"2026-10-08T10:42:21+01:00","updated_at":"2026-10-08T10:42:27+01:00","alt":"Kooks 2021+ F150 5.0L Header\/Connection Kits - 1371H230, 1371H420, 1371H430","width":3375,"height":3375,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1a012d5add03a8111cc0611020855b5_56da28fc-115b-4053-8cb3-991fe74a739c.png?v=1791452547","variant_ids":[]},{"id":86449372594518,"product_id":11350223257942,"position":3,"created_at":"2026-10-08T10:42:21+01:00","updated_at":"2026-10-08T10:42:26+01:00","alt":"Kooks 2021+ F150 5.0L Header\/Connection Kits - 1371H230, 1371H420, 1371H430","width":3375,"height":3375,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1a012d5add03a8111cc0611020855b5_1f8b220d-0d18-44de-aa91-9191c9bdb6f6.png?v=1791452546","variant_ids":[]},{"id":86449372627286,"product_id":11350223257942,"position":4,"created_at":"2026-10-08T10:42:21+01:00","updated_at":"2026-10-08T10:42:27+01:00","alt":"Kooks 2021+ F150 5.0L Header\/Connection Kits - 1371H230, 1371H420, 1371H430","width":3375,"height":3375,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1a012d5add03a8111cc0611020855b5_606574d3-2efb-489a-862e-cf3a3dddb698.png?v=1791452547","variant_ids":[]}],"image":{"id":86449372528982,"product_id":11350223257942,"position":1,"created_at":"2026-10-08T10:42:21+01:00","updated_at":"2026-10-08T10:42:26+01:00","alt":"Kooks 2021+ F150 5.0L Header\/Connection Kits - 1371H230, 1371H420, 1371H430","width":3375,"height":3375,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/e1a012d5add03a8111cc0611020855b5_05ed33fe-ff3f-4c20-8a0e-7a7ac6f055cd.png?v=1791452546","variant_ids":[]}}}