MRT Street Race Axle Back Exhaust (91U903) - 2015+ Mustang EcoBoost 3.7L V6
Take your Mustang to the next level with the MRT Street Race Axle Back Exhaust, engineered for drivers who want maximum sound and presence. This system delivers an aggressive, deep muscle car tone that is unmistakable in every driving condition, making it the loudest axle-back option in the MRT lineup for EcoBoost and V6 Mustangs.
Built from premium T304 stainless steel, this axle-back system features 2.5 inch mandrel-bent tubing and a straight-through muffler design to improve exhaust flow and unlock additional performance. The result is a bold, high-output exhaust note that commands attention while still maintaining a manageable level of interior drone. Finished with dual 4 inch double wall tips, this system adds an aggressive visual upgrade with optional Black Ops matte finishes available.
From startup to wide open throttle, the Street Race system delivers a constant performance sound that transforms the character of your Mustang. If you are looking for the most aggressive tone available without stepping into a full race system, this is the upgrade that delivers.
Features
- Maximum output aggressive exhaust tone with constant presence
- Loudest MRT axle-back option for EcoBoost and V6 Mustangs
- Straight-through muffler design improves exhaust flow and performance
- 2.5 inch mandrel-bent tubing reduces restriction
- Constructed from corrosion-resistant T304 stainless steel
- Dual 4 inch double wall exhaust tips with beveled edges
- Optional Black Ops matte tip finish available
- Engineered to balance aggressive sound with manageable drone
- No tuning required for installation
- Direct bolt-on system for quick and easy install
- Designed and manufactured in the USA
Additional Notes
- Loudness rating: 10 out of 10
- Drone level: mild and controlled
- Performance rating: 8 out of 10
- Does not fit quad tip Performance Package vehicles
- Limited lifetime warranty included
Fitment
- 2015 Ford Mustang EcoBoost 2.3L
- 2016 Ford Mustang EcoBoost 2.3L
- 2017 Ford Mustang EcoBoost 2.3L
- 2018 Ford Mustang EcoBoost 2.3L
- 2019 Ford Mustang EcoBoost 2.3L
- 2020 Ford Mustang EcoBoost 2.3L
- 2021 Ford Mustang EcoBoost 2.3L
- 2022 Ford Mustang EcoBoost 2.3L
- 2023 Ford Mustang EcoBoost 2.3L
- 2024 Ford Mustang EcoBoost 2.3L
- 2025 Ford Mustang EcoBoost 2.3L
- 2026 Ford Mustang EcoBoost 2.3L
- 2015 Ford Mustang V6 3.7L
- 2016 Ford Mustang V6 3.7L
- 2017 Ford Mustang V6 3.7L
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
