Kooks Headers · New
Kooks 05-10 Ford Mustang GT 4.6L 3V Auto/Manual 2 1/2in x 2 1/2in OEM Cat H Pipe Kooks HDR Req
MPN 11313500 · Store SKU ksh11313500
Supplier stock checked 11/7/2026, 3:10:15 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.
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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!" 2-1/2in. x 2-1/2in. OEM Exhaust Catted H-Pipe. Must be used with Kooks Headers. STANDARD RACE CATS NOT FOR USE IN FORCED INDUCTION APPLICATIONS 2-1/2" x 2-1/2" OEM Exhaust Catted H-Pipe. Must be used with Kooks Headers. STANDARD RACE CATS NOT FOR USE IN FORCED INDUCTION APPLICATIONS 2-1/2in. Catted H-Pipe. 2005-2010 Mustang GT 4.6L 3V. Requires Kooks Headers. 2-1/2" Catted H-Pipe. 2005-2010 Mustang GT 4.6L 3V. Requires Kooks Headers.
Manufacturer fitment & guides
- 2-1/2" x 2-1/2" Catted H-Pipe. 2005-2010 Ford Mustang GT 4.6L 3V. 16GA 304 Stainless Steel construction Ball and socket style connection to Headers Kooks Performance Cats 400 Cell High Flow Catalytic Converters Performance Cats not for use on Forced Induction Applications Requires Kooks Headers with 2-1/2" Collectors Includes H-Pipe Clamps 2-1/2" Outlet connects to OEM exhaust re-using OEM Clamps(Not Included)
- Manufacturer-supplied application summary from Turn14; this may not be an exhaustive fitment list.
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
