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!". 2015-2024 Mustang GT/Dark Horse 5.0L 4V 1-7/8" x 3" Stainless Headers w/ Performance Catted Connection Pipes and OEM Adapters. 304 Stainless Steel Construction 3/8" Thick Laser Cut Flanges2" Mandrel Bent Primaries3" Collectors with Kooks' Patented Scavenging SpikeDual Bolt Pattern Header FlangeKooks Performance Cats 400 Cell High Flow Catalytic ConvertersPerformance Cats not for use on Forced Induction ApplicationsIncludes Gaskets, Oxygen Sensor Extension Harness, Clamps and Bolt Kit required for InstallationNo additional parts required.. 2015-2024 Mustang GT 5.0L 4V 1 7/8in. x 3in. Stainless Steel Headers w/Catted OEM Connection Includes O2 Bungs STANDARD RACE CATS NOT FOR USE IN FORCED INDUCTION APPLICATIONS. 2015-2024 Mustang GT 5.0L 4V 1 7/8" x 3" Stainless Steel Headers w/Catted OEM Connection Includes O2 Bungs STANDARD RACE CATS NOT FOR USE IN FORCED INDUCTION APPLICATIONS. 2015-2024 Mustang GT 5.0L 4V 1-7/8" x 3" Stainless Headers w/Catted Connection Pipes and OEM Adapters. STANDARD RACE CATS NOT FOR USE IN FORCED INDUCTION APPLICATIONS. 1-7/8in. x 3in. Stainless Headers w/Catted Connection Pipes and OEM Adapters. STANDARD RACE CATS NOT FOR USE IN FORCED INDUCTION APPLICATIONS. 1-7/8" x 3" Stainless Headers w/Catted Connection Pipes and OEM Adapters. STANDARD RACE CATS NOT FOR USE IN FORCED INDUCTION APPLICATIONS. Kooks Products Are Backed By A Limited Lifetime Warranty To The Original Purchaser. Kooks 15-24 Ford Mustang GT V8 5.0L 1-7/8in SS Headers w/ Catted Connection Pipe. 1-7/8" Stainless Headers & Catted Conn Kit. 2015-24 Mustang GT/Dark Horse 5.0L.. 1-7/8in. Stainless Headers/Catted Conn Kit. 2015-24 Mustang GT/Dark Horse 5.0L.. Kooks Products Are Dyno And Race Tested And Designed For Maximum Power. Kooks Uses T304 Aircraft Quality Stainless Steel. 1-7/8in. Hdr w/Catted OEM Connection. 1-7/8" Hdr w/Catted OEM Connection. Manufactured In The USA. 1-7/8in. Hdr w/Conn.. 1-7/8" Hdr w/Conn.

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