MRT Sport Touring Axle Back Exhaust (91A153) - 2011-2014 Mustang GT & 2011-2012 GT500
Enhance the sound and performance of your 2011-2014 Mustang GT or 2011-2012 Shelby GT500 with the MRT Sport Touring Axle Back Exhaust. Designed for drivers who want a refined yet aggressive tone, this system delivers a deep muscle car sound that stays controlled during daily driving and comes alive when you step into the throttle.
Constructed from premium T304 stainless steel, this axle-back system features 3 inch mandrel-bent tubing and a straight-through design to improve exhaust flow and reduce restriction. This results in better throttle response, increased efficiency, and a more engaging driving experience. Dual 4 inch double-wall stainless steel tips provide a bold, finished look, with an optional Black Ops matte finish available for a stealthier appearance.
The Sport Touring system strikes the perfect balance between performance and comfort, offering an elevated exhaust presence without excessive drone. Around town, it maintains a smooth and refined tone, while wide-open throttle delivers a stronger, more aggressive sound. With a direct bolt-on design and no tuning required, installation is quick and straightforward using basic hand tools.
Features
- Refined performance sound with deep muscle car tone
- Straight-through muffler design for improved exhaust flow
- 3 inch mandrel-bent tubing for reduced restriction
- T304 stainless steel construction for long-term durability
- Dual 4 inch double-wall stainless steel exhaust tips
- Optional Black Ops matte tip finish available
- Improved throttle response and overall performance
- Minimal drone for comfortable daily driving
- Direct bolt-on installation with no modifications required
- No tuning required
- Engineered and manufactured in the USA
- Limited lifetime warranty included
Additional Notes
- Balanced sound profile designed for daily driving and performance use
- Minimal drone for improved cabin comfort
- Compatible with MRT MaxFlow H-Pipe for additional performance gains
- Does not fit 2013-2014 Shelby GT500 models
- Estimated installation time: approximately 60 minutes
Fitment
- 2011 Ford Mustang GT 5.0L V8
- 2012 Ford Mustang GT 5.0L V8
- 2013 Ford Mustang GT 5.0L V8
- 2014 Ford Mustang GT 5.0L V8
- 2011 Ford Mustang Shelby GT500 5.4L V8
- 2012 Ford Mustang Shelby GT500 5.4L V8
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

