{"product":{"id":11350221914454,"title":"Kooks 1-5\/8 x 3-inch Slip-On Header Collector | 9901S","body_html":"\u003ch2\u003eComplete your 1-5\/8-inch-primary header\u003c\/h2\u003e\u003cp\u003eKooks 9901S gives your fabricated header a 304 stainless four-into-one collector with a 3-inch outlet. The patented scavenging spike sits at the primary-tube junction, with two A\/B-style tabs supplied to secure the collector.\u003c\/p\u003e\u003cp\u003eSKU: 9901S\u003c\/p\u003e\u003ch2\u003eThe inlet fits over the primary tubes\u003c\/h2\u003e\u003cp\u003eThe primary inlets measure 1-5\/8-inch inside diameter to slip over matching outside-diameter tubing. The collector outlet is 3-inch outside diameter.\u003c\/p\u003e\u003ch2\u003eChoose the quantity for your build\u003c\/h2\u003e\u003cp\u003e9901S is sold individually. Match the number of collectors to your header arrangement and plan the downstream joint using the stated outlet dimension.\u003c\/p\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\u003e9901S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCustom header fabrication; single collector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary inlet diameter\u003c\/td\u003e\n\u003ctd\u003e1-5\/8-inch inside diameter; slips over matching outside diameter primary tubes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector outlet diameter\u003c\/td\u003e\n\u003ctd\u003e3-inch outside diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollector design\u003c\/td\u003e\n\u003ctd\u003eFour-into-one with patented scavenging spike\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eTwo A\/B-style tabs to secure collector to primaries\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\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs 3 inches the primary diameter?\u003c\/h3\u003e\u003cp\u003eIt is the collector outlet outside diameter. The primary inlets are 1-5\/8-inch inside diameter.\u003c\/p\u003e\u003ch3\u003eHow many tabs come with it?\u003c\/h3\u003e\u003cp\u003eTwo A\/B-style securing tabs are included with each single collector.\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 Fabrication Components","created_at":"2026-10-08T10:42:05+01:00","handle":"kooks-9901s","updated_at":"2026-10-11T10:14:43+01:00","published_at":"2026-10-09T13:34:23+01:00","template_suffix":null,"published_scope":"global","tags":"brand:kooks, cat:exhausts, class:equipment-service-non-vehicle, dept:performance-parts, type:exhaust-fabrication-component","variants":[{"id":55646919459158,"product_id":11350221914454,"title":"Default Title","price":"185.02","sku":"9901S","position":1,"compare_at_price":"","fulfillment_service":"manual","inventory_management":null,"option1":"Default Title","option2":null,"option3":null,"created_at":"2026-10-08T10:42:05+01:00","updated_at":"2026-10-11T10:14:43+01:00","taxable":true,"barcode":"842422137557","grams":4536,"image_id":null,"weight":4.536,"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":14512406331734,"product_id":11350221914454,"name":"Title","position":1,"values":["Default Title"]}],"images":[{"id":86449346937174,"product_id":11350221914454,"position":1,"created_at":"2026-10-08T10:42:05+01:00","updated_at":"2026-10-08T10:42:08+01:00","alt":"Kooks 1-5\/8\" x 3\" 304 304 Stainless Steel Slip-On Collector","width":1500,"height":1500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/ee8771804a63e7ca0f78c9313f3a1ede_379f551d-669d-4527-8a3e-6e8e11b4eb92.jpg?v=1791452528","variant_ids":[]}],"image":{"id":86449346937174,"product_id":11350221914454,"position":1,"created_at":"2026-10-08T10:42:05+01:00","updated_at":"2026-10-08T10:42:08+01:00","alt":"Kooks 1-5\/8\" x 3\" 304 304 Stainless Steel Slip-On Collector","width":1500,"height":1500,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0952\/1849\/9926\/files\/ee8771804a63e7ca0f78c9313f3a1ede_379f551d-669d-4527-8a3e-6e8e11b4eb92.jpg?v=1791452528","variant_ids":[]}}}