Kooks Headers Exhaust Crossover Pipe
Kooks Headers GREEN Catted X-Pipe EPA-Certified High-Performance Exhaust Crossover
Kooks Headers 9114S 3" X-Pipe Kit - 16 Gauge 304 Stainless Steel
Kooks Headers 11413600 3in x 2-3/4in GREEN Catted H-Pipe Stainless Steel
Kooks Headers 21503201 3" x 2-1/2" Stainless Steel Catted X-Pipe for C5 Corvette
Kooks Headers 11513500 OEM Resonator Delete H-Pipe Kit Stainless Steel
Kooks Headers 21503311 Full 3 in. Green Catted X-Pipe Exhaust Crossover Pipe
Kooks Headers 11313600 2.5" GREEN Catted H-Pipe for 2005-2010 Mustang GT 4.6L
Kooks Headers 11323600 3in x 2.5in Catted H-Pipe 2007-2010 Shelby GT500
Kooks Headers 11423600 3in x 2-3/4in Stainless Steel Catted H-Pipe for 2011-2014 Shelby GT500
Kooks Headers 11575380 3" Stainless Steel Green Catted Header-Back Exhaust System with ULTRA X-Pipe
Kooks Headers 11513700 ULTRA X-Pipe to OEM Exhaust Connection 3-Inch 304 Stainless Steel
Kooks Headers Exhaust Crossover Pipes: The Missing Link in a High-Performance Exhaust System
When you invest in a set of long-tube headers, the crossover pipe is the critical connection that determines how much of that potential actually reaches the rear wheels. Kooks Headers & Exhaust has been building race-winning exhaust components since 1962, and their crossover pipes carry the same exacting standards that have made the brand a household name on the drag strip, road course, and street alike.
A crossover pipe — whether an X-pipe or an H-pipe — balances exhaust pulses between the two banks of a V-engine, scavenging spent gases more efficiently and allowing the engine to breathe with less restriction. Kooks offers both designs across a range of popular American performance platforms, giving builders the flexibility to tune for either the broad mid-range torque character of an H-pipe or the top-end power and distinctive tone of an X-pipe configuration.
What Sets Kooks Crossover Pipes Apart
- T304 Aircraft-Grade Stainless Steel: Every Kooks crossover pipe is constructed from T304 stainless steel, delivering exceptional corrosion resistance and the ability to withstand the extreme thermal cycling of high-horsepower operation.
- Catted & Competition-Only Options: Kooks offers both catted X-pipes and H-pipes for street-driven builds, as well as competition-only (catless) versions for track and race use, giving customers a choice that matches their application and local regulations.
- Model-Specific Engineering: Rather than a one-size-fits-all approach, each crossover pipe is custom-engineered for a specific year, make, and model. Fitment examples span from the 2005–2010 Mustang GT 4.6L 3V and the 2011–2014 Mustang GT 5.0L to the 2015–2020 Shelby GT350 and the 2009–2015 Cadillac CTS-V — ensuring seamless integration and straightforward installation.
- Dyno and Race Tested: All Kooks products are dyno and race tested and designed for maximum power — the crossover pipe line is no exception, with decades of motorsports validation behind every design.
- Limited Lifetime Warranty: Kooks stands behind every crossover pipe with a limited lifetime warranty to the original purchaser, a level of confidence that reflects the quality of their USA-made manufacturing.
A Heritage Built on American Muscle
Kooks crossover pipes are engineered specifically around domestic V8 platforms — Ford, General Motors, and Mopar — the same vehicles that defined performance in NHRA, NMRA, NASCAR, and SCCA competition. Whether paired directly with a set of Kooks long-tube headers or used to bridge headers from another manufacturer to an OEM-style exhaust, the crossover pipe is where Kooks' decades of exhaust-flow expertise become tangible horsepower and torque.
For builders looking at the complete exhaust crossover pipe category, or those wanting to explore the full depth of Kooks' exhaust lineup, Kooks represents one of the most trusted names in USA-made performance exhaust — built by racers, for racers, since 1962.