Kooks 3" Stainless Steel Competition Header-Back Exhaust (2025–2026 Mustang GTD 5.2L) | 11575180
Unleash Maximum Exhaust Flow & Performance
Take your 2025–2026 Mustang GTD 5.2L to the next level with the Kooks 3" Stainless Steel Competition Header-Back Exhaust System. Designed for maximum performance, this system delivers improved exhaust flow, increased horsepower potential, and an aggressive race-inspired sound.
Designed to Pair with Kooks Long Tube Headers
This system is engineered specifically to connect Kooks long tube headers to the factory axle-back system, creating a seamless high-flow exhaust path. The included 3" competition-only connections ensure optimal performance for track-focused builds.
ULTRA X-Pipe for Power & Sound
Featuring a high-performance ULTRA X-pipe, this system improves exhaust scavenging, enhances horsepower and torque, and delivers a deep, aggressive exhaust tone that matches the GTD’s high-performance character.
Premium Stainless Steel Construction
Built from high-quality stainless steel, this exhaust system offers excellent durability, corrosion resistance, and long-term reliability—perfect for high-performance and track use environments.
Complete Installation Package
The system includes all necessary clamps for installation, making it easier to integrate into your existing setup when paired with Kooks headers.
Key Features
- Fits 2025–2026 Ford Mustang GTD 5.2L
- 3" stainless steel header-back exhaust system
- Includes ULTRA X-pipe for improved performance and sound
- Connects Kooks headers to OEM axle-back exhaust
- Competition-only design for maximum flow
- Includes all required clamps for installation
- Durable, corrosion-resistant stainless steel construction
Vehicle Fitment
- 2025 Ford Mustang GTD 5.2L
- 2026 Ford Mustang GTD 5.2L
Important Notes
- Requires Kooks Long Tube Headers for installation
- Competition use only – not legal for street use
If you're building a track-focused Mustang GTD and demand maximum exhaust performance, the Kooks 3" Header-Back Exhaust System delivers the flow, sound, and quality needed to match your build.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

