Kooks 15-21 Ford Mustang Shelby GT350R Shelby GT350 1-3/4 x 1-7/8 x 3 Header & Catted X-Pipe Kit

Kooks 1-3/4" x 1-7/8" x 3" Long Tube Header & Catted X-Pipe Kit | 2015–2021 Mustang Shelby GT350 & GT350R

Unleash the true sound and performance of your 2015–2021 Ford Mustang Shelby GT350 and GT350R with the Kooks Long Tube Header & Catted X-Pipe Kit. Engineered for maximum horsepower, torque, and throttle response, this system is built to take your 5.2L Voodoo engine to the next level on the street or the track.

Featuring a stepped design (1-3/4" to 1-7/8" primaries into a 3" collector), these headers are designed to optimize exhaust flow across the powerband. The system also includes a 3" catted X-pipe, providing a balanced exhaust note and aggressive tone while maintaining high-flow efficiency.

Crafted from premium T304 aircraft-quality stainless steel, every component is precision-built, CNC mandrel-bent, and fully TIG-welded for long-lasting durability. Backed by a limited lifetime warranty, these headers are dyno-tested and race-proven, delivering championship-winning performance trusted by racers for decades.

For over 60 years, Kooks Headers & Exhaust has been the industry leader in high-performance exhaust systems—handcrafting parts in the USA and powering champions across NHRA, NMRA, NASCAR, SCCA, and more.

Features & Benefits:

• Fits 2015–2021 Mustang Shelby GT350 & GT350R (5.2L Voodoo)

• Stepped long tube headers: 1-3/4" → 1-7/8" primaries into 3" collectors

• Includes 3" high-flow catted X-pipe for aggressive tone & performance

• Built from T304 aircraft-grade stainless steel

• CNC mandrel-bent tubing for optimal flow

• Fully TIG-welded construction for strength and precision

• Handcrafted in the USA since 1962

• Dyno-proven, race-tested design for maximum power gains

• Backed by a limited lifetime warranty

Bring your Shelby GT350 or GT350R to life with the Kooks Header & Catted X-Pipe Kit—the perfect combination of race-winning performance, aggressive sound, and handcrafted quality.