13-18 Focus ST Ecoboost MRT Street Race Axle Back

2013 - 18 Ford Focus ST MRT Street Race Axle Back Performance Exhaust System 91J101
MRT 304 Stainless Axle-back: 2013-2018 Focus ST #91J101
Alternative Views

MRT Part# 91J101 Loudness: 8 Drone: 2 Performance: 8

Application: 2013 thru 2018 Focus ST Ecoboost
Tune: None Required
Time to Install: 60 Minutes
Retail Price: $599.99
Your Price: $499.99
Sale Price: $449.99

Price with Options: $449.99

Availability: Usually Ships in 1 to 2 Business Days

Available Options:

Product Details Technical Specs Installation Instructions

The Street Race Axle Back is a loud, aggressive MRT exhaust system for your Focus ST. This sporty variation on the third-generation Focus looks like an aggressive compact sports car, but the stock 2.0L EcoBoost engine and exhaust produce a somewhat puny sound. By installing this 2013-18 Focus ST Axle Back Exhaust, you'll have the tone to match its sleek exterior. The exhaust has just enough exhaust presence with elevated sound to Get Noticed, plenty of opportunity to Feel the Performance and packaged in a design without excessive drone.

American-Quality Exhaust Performance

The Focus ST MRT Street Race Axle Back has a loud, deep muscle car sound and is handcrafted from T304 stainless steel. This system includes 2.5-inch mandrel-bent tubing and dual four-inch double wall, polished T304 stainless steel tips with beveled edges. If you want a bolder accent, upgrade to our "Black Ops" dual-tip blackout using heat-resistant ceramic.

This system is engineered for the best sound to match your vehicle and provides increased performance from the increased exhaust flow. It's designed for DIY backyard installation using the included hardware plus common hand tools like ratchets, sockets and pliers.

More Focus ST Exhaust Systems

MRT has several performance exhausts for the Ford Focus ST that give it a customized sound. If you want the biggest horsepower boost and the most aggressive tone, the 2013-18 Focus ST MRT Extreme Cat Back #91J102 supplies it with the same handcrafted quality. Conversely, if you're a beginner modder or want a system that won't get the neighbors angry, we offer the Focus ST MRT Sport Touring Resonator Delete #91J103. Call us at 734-455-5807 or use our contact form to talk with an MRT expert about your needs. We've been developing and manufacturing the best Ford aftermarket exhaust systems right here in the U.S. since 2003.

Application: 2013 through 2018 Focus ST, EcoBoost 2.0L 4-cylinder

Hear the Difference

  • How does it sound? The Focus ST MRT Street Race Axle Back has a loud, deep muscle car sound.
  • Is there a drone or resonance? The drone is noticeable but tolerable.
  • What if I step on it? Wide-open throttle increases the exhaust loudness and tone to an aggressive performance sound.

Are you located close to Plymouth, Michigan and need your MRT aftermarket exhaust installed? Call MRT at 734-455-5807 to make an appointment today!

91J101: 13-18 Focus ST EcoBoost MRT KR Axle Back Sound Clip
91J101 and 91J103: 13-18 Focus ST MRT Axle back and RD
  • DIY installation for the backyard mechanic
  • T304 stainless steel construction for the best corrosion resistance
  • Engineered, designed and manufactured in the U.S.

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