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) Catted Stainless Steel Y-Pipe. 2019-2023 GM 1500 Series Truck 5.3L. 3in. 16GA 304 Stainless Steel Construction. KOOKS Standard 300 Cell High Flow Catatlytic Converters. Ball and Socket style Connection to Headers. Must be used with Kooks Long Tube Headers. Includes Clamps. Outlet connects to OEM Exhaust re-using OEM Hardware. KOOKS Standard Cats not recommended for use with forced induction.. 3" x 2-3/4"(OEM) Catted Stainless Steel Y-Pipe. 2019-2023 GM 1500 Series Truck 5.3L. 3" 16GA 304 Stainless Steel Construction. KOOKS Standard 300 Cell High Flow Catatlytic Converters. Ball and Socket style Connection to Headers. Must be used with Kooks Long Tube Headers. Includes Clamps. Outlet connects to OEM Exhaust re-using OEM Hardware. KOOKS Standard Cats not recommended for use with forced induction.. 3" x 2-3/4"(OEM) Catted Stainless Y-Pipe. 2019-2023 GM 1500 Series Truck 5.3L. Must be used with Kooks Long Tube Headers. Outlet connects to OEM Exhaust using OEM Hardware. KOOKS Standard Cats not recommended for use with forced induction.. 3in. x 2-3/4in.(OEM) Catted Stainless Y-Pipe. 2019-2023 GM 1500 Series Truck 5.3L. Must be used with Kooks Long Tube Headers. Outlet connects to OEM Exhaust using OEM Hardware. KOOKS Standard Cats not recommended for use with forced. Kooks 2019+ GM 1500 Series Truck 5.3L 3in x OEM Outlet Catted SS Y Pipe Kooks HDR Req. Kooks Products Are Backed By A Limited Lifetime Warranty To The Original Purchaser. Kooks Products Are Dyno And Race Tested And Designed For Maximum Power. 3in. Stainless Catted Y-Pipe. 2019-2023 GM 1/2 Ton Truck 5.3L.. 3" Stainless Catted Y-Pipe. 2019-2023 GM 1/2 Ton Truck 5.3L.. Kooks Uses T304 Aircraft Quality Stainless Steel. 3in. x OEM Catted Y-Pipe. Manufactured In The USA. 3" x OEM Catted Y-Pipe. 3in. x OEM Y-Pipe. 3" x OEM Y-Pipe

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