Kooks Headers · New
Kooks 14+ GM 1500 Series Truck 5.3L 3in x OEM Out GREEN Cat SS Y Pipe Kooks HDR Req
MPN 28603300 · Store SKU ksh28603300
Supplier stock checked 11/7/2026, 12:49:18 PM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, "Get Kookin with KOOKS!" 3in. x 2-3/4in.(OEM) GREEN Catted Stainless Steel Y-Pipe. 2014-2018 GM 1500 Series Truck/2015-2020 SUV 5.3L. Must be used with Kooks Long Tube Headers. Includes Clamps. Outlet connects to OEM Exhaust re-using OEM Hardware. 3" x 2-3/4"(OEM) GREEN Catted Stainless Steel Y-Pipe. 2014-2018 GM 1500 Series Truck/2015-2020 SUV 5.3L. Must be used with Kooks Long Tube Headers. Includes Clamps. Outlet connects to OEM Exhaust re-using OEM Hardware. 3in. Stainless GREEN Catted Y-Pipe. 2014-2019 GM Truck/2015-2020 SUV 5.3L. 3" Stainless GREEN Catted Y-Pipe. 2014-2019 GM Truck / 2015-2020 SUV 5.3L.
Manufacturer fitment & guides
- 3" x 2-3/4"(OEM) GREEN Catted Stainless Steel Y-Pipe. 2014-2018 GM 1500 Series Truck/2015-2020 SUV 5.3L. 3" 16GA 304 Stainless Steel Construction KOOKS GREEN Cats 400 Cell High Flow Catatlytic ConvertersBall and Socket style Connection to Headers Requires Kooks Long Tube Headers Includes Clamps Outlet connects to OEM Exhaust re-using OEM Hardware
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
