Steeda Resonator Delete X-Pipe (555-3618) – 2015–2026 Mustang GT
Unleash the sound and performance of your Mustang with the Steeda 304SS Resonator Delete X-Pipe. Designed for 2015–2026 Coyote-powered Mustang GT, Bullitt, Mach 1, and Dark Horse models, this precision-crafted upgrade enhances exhaust flow, adds horsepower, and delivers the aggressive race-inspired tone enthusiasts crave—all while shedding unnecessary weight from your factory system.
The X-pipe design improves exhaust scavenging by up to 20% over the factory resonator or traditional H-pipe, resulting in measurable power gains at higher RPMs. Unlike cheaper alternatives, Steeda’s X-pipe is engineered to work seamlessly with OEM exhaust heat shields on 2018+ GTs, avoiding the need for cutting or modifying factory shields. Built from premium T-304 stainless steel, it resists rust and corrosion better than 409SS or aluminized steel, ensuring long-lasting performance and durability.
Installation is straightforward with mandrel-bent 2.5” tubing and flush-fit band clamps that provide a leak-free seal while allowing reinstallation of the stock resonator if desired. Lightweight, durable, and dyno-proven, this is the perfect upgrade for Mustang owners seeking more sound, more power, and less weight—all at an affordable cost.
Key Features:
- Up to +8 horsepower and +9.5 lb-ft torque gains
- Improves exhaust flow up to 20% over stock
- Aggressive race-inspired exhaust tone
- Sheds up to 7 lbs compared to factory resonator
- Made from premium T-304 stainless steel – resists rust and corrosion
- Retains 2018+ factory heat shields without modification
- Flush-fit band clamps prevent leaks and allow reinstall of factory resonator
- Direct fit for GT, Bullitt, Mach 1, and Dark Horse Mustangs
- Proudly designed and manufactured in the USA
For Mustang enthusiasts looking for the perfect balance of sound, performance, and quality, the Steeda Resonator Delete X-Pipe is the ultimate bolt-on exhaust upgrade.
Fitment:
- 2015 Ford Mustang
- 2016 Ford Mustang
- 2017 Ford Mustang
- 2018 Ford Mustang
- 2019 Ford Mustang
- 2020 Ford Mustang
- 2021 Ford Mustang
- 2022 Ford Mustang
- 2023 Ford Mustang
- 2024 Ford Mustang
- 2025 Ford Mustang
- 2026 Ford Mustang
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
