
Exhaust
2015-2026 Roush Mustang GT Resonator Delete X-Pipe
Roush part # 422046
$259.99
Roush retail price · part only
Installed at our shop
est. $484.99
Part $259.99 + about 1.5 hrs labor at $150/hr ($225.00).
Estimate only — shop supplies and sales tax not included. We confirm the final installed price for your exact vehicle before any work.
Fits: 2015–2026 Mustang
MustangInstalled at our East Bridgewater shop, or shipped anywhere in the US. Prefer to talk? 508-715-3554
- Genuine ROUSH Performance part, from an authorized Gold Dealer
- Installed by Ford specialists at our East Bridgewater shop
- Roush retail price. Installed price estimated up front, confirmed before work
Prices and availability subject to change. Prices updated October 2, 2026.
Details & specs
Product highlights for the 2015-2026 Roush Mustang GT Resonator Delete X-Pipe:
- Fits 2015-2026 5.0L V8 Mustang GT (both fastbacks and convertibles)
- Reduces back pressure and improves the flow of your Mustang's exhaust system for maximum horsepower, torque, and overall performance
- Pipes are made with high-quality stainless steel for durability and corrosion resistance
- Eliminates the factory resonator to give your vehicle a racecar-like growl and more aggressive sound
- X-pipe is mandrel bent to ensure consistent flow
- 12-pound weight reduction over stock muffler assembly
- Compatible with Ford and Roush Active Exhaust Systems.
- Installation is quick and easy, with no vehicle modifications required
- Includes all necessary hardware
- Includes Roush Limited Warranty
Roush Performance's Resonator Delete X-Pipe offers an affordable solution for removing the factory resonator, delivering an incredible race-inspired sound. This X-Pipe significantly enhances the flow of your 2015-2026 Mustang GT exhaust system, including Ford's factory active exhaust, unlocking maximum horsepower and torque.
The Resonator Delete X-Pipe provides a quick and straightforward way to enhance the sound and performance of your 2015-2026 Mustang for a more exhilarating on-road experience.
Crafted from high-grade mandrel-bent stainless steel with a 2.5-inch diameter, this X-Pipe ensures maximum flow, reduced back pressure, and exceptional durability. The system's design and engineering leverage OEM vehicle CAD data to guarantee a perfect fit, ensuring a hassle-free installation process.
Sound Clip - Taken with the 2015+ Mustang Roush Axle-Back Exhaust Kit also installed.




