The Mustang GT MRT Sport Touring Axle Back system for the 5th Gen and 6th Gen Mustang delivers a refined, on demand, deep muscle car sound and is constructed in corrosion resistant T304 Stainless Steel. Base systems include T304 polished SS 4" tips and 2.5" mandrel bent tube. Black Ops black matte tip finish is available for an additional fee. This system is engineered for the best sound to match your GT and provides increased performance from increased exhaust flow. The MRT
Sport Touring Axle Backis quieter than the MRT Extreme Axle Back. It has just enough exhaust presence with elevated sound to Get Noticed, Feel the Performance note and packaged in a design without excessive drone.
MRT aftermarket exhaust systems do not have the AFM or NPP valves increasing performance and flow. This premium MRT Mustang exhaust includes Power Plates to simulate the valves and avoids a check engine light (CEL) from appearing on your dashboard. For more information on these plates, refer to
MRT Part #92G155.
Application: 2018+ Mustang GT Coupe and Convertible.
Hear the Difference ![]()
How does it sound? The MRT Mustang GT Sport Touring Axle Back #91U920 has a balanced, deep muscle car sound.![]()
Is there drone or resonance? The drone is noticeable but tolerable.![]()
What if I step on it? Wide-open throttle increases exhaust loudness an aggressive performance sound.
Are you located close to Plymouth, MI and need your MRT aftermarket exhaust installed? Call MRT at 734-455-5807 to make an appointment today!
How does it sound? The MRT Mustang GT Sport Touring Axle Back #91U920 has a balanced, deep muscle car sound.
Is there drone or resonance? The drone is noticeable but tolerable.
What if I step on it? Wide-open throttle increases exhaust loudness an aggressive performance sound.
