2018+ Mustang GT MRT Street Race Axle Back

2018+ Mustang GT MRT Street Race Axle Back 91U921
MRT 304 Stainless Axle-back: 2018+ Mustang GT #91U921
MRT Part# 91U921 Loudness: 8 Drone: 2 Performance: 6

Application: 2018+ Mustang GT.
Tune: None Required
Time to Install: 60 Minutes
Retail Price: $899.99
Your Price: $749.99

Price with Options: $749.99

Availability: Usually Ships in 1 to 2 Business Days

Available Options:

Product Details Technical Specs Installation Instructions
The Mustang GT MRT Street Race Axle Back system has a loud, deep muscle car sound and is handcrafted 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 Street Race Axle Back is louder than the Sport Touring Exhaust This Badass series has just enough exhaust presence with elevated sound to Get Noticed, Feel the Performance note and packaged in a design without excessive drone.

For customers with factory-installed Active & Dual Mode Exhaust valves, MRT offers and recommends a simple solution that allows you to upgrade your exhaust system without having to develop a tune. For more information on these plates, refer to MRT Part #92G155 or simply add to your shopping cart before checkout.

Application: 2018+ Mustang GT Coupe and convertible.

Hear the Difference
  • How does it sound? The MRT Mustang GT Street Race Axle Back #91U921 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 for 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!

  • DIY installation for the backyard mechanic
  • T304 Stainless Steel for the best corrosion resistance
  • Engineered, designed and manufactured in the USA

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