Kooks Headers · Clearance
Kooks 11-14 Ford Mustang GT 5.0L 4V 3in x 2 3/4in OEM Cat H Pipe Kooks HDR Req
MPN 11413500 · Store SKU ksh11413500
Supplier stock checked 11/8/2026, 6:58:12 AM UTC. Adding a part does not reserve it.
Clearance and scratch-and-dent parts are final sale. No returns or refunds.
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) Catted H-Pipe. Must be used with Kooks Headers. STANDARD RACE CATS NOT FOR USE IN FORCED INDUCTION APPLICATIONS 3" x 2-3/4"(OEM) Catted H-Pipe. Must be used with Kooks Headers. STANDARD RACE CATS NOT FOR USE IN FORCED INDUCTION APPLICATIONS 3in. x 2-3/4in.(OEM) SS Catted H-Pipe. 2011-2014 Mustang GT 5.0L. 3" x 2-3/4"(OEM) SS Catted H-Pipe. 2011-2014 Mustang GT 5.0L.
Manufacturer fitment & guides
Check 11413500 against the manufacturer’s application information below.
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
- Clearance item. All sales are final under the supplier clearance policy.
