13-18 Focus ST MRT Extreme Cat Back

2013 - 18 Focus ST MRT Extreme  Performance Cat Back  91J102
MRT 304 Stainless Catback: 2013-2018 Focus ST #91J102
Alternative Views

MRT Part# 91J102 Loudness: 10 Drone: 2 Performance: 9

Application: 2013 thru 2018 Focus ST
Tune: None Required
Time to Install: 60 Minutes
Retail Price: $1,079.99
Your Price: $899.99
Sale Price: $809.90

Price with Options: $809.90

Availability: Usually Ships in 1 to 2 Business Days

Available Options:

Product Details Technical Specs Installation Instructions
Maximize sound and performance with the MRT Extreme Sport Catback exhaust, delivering all the bite, pops and burbles of the Focus ST. Reduce backpressure, increase exhaust flow and performance with this precision designed premium quality exhaust system....AND thanks to the MRT Drone Management System (DMS), you can Get Noticed and enjoy the full loudness of the exhaust without compromising cabin comfort at cruising speeds.

MRT systems for the third generation Focus ST are handcrafted and built to last with corrosion resistant 2.5" T304 stainless steel and CNC Mandrel bent for the best performance. This system includes 2.5" mandrel-bent tubes and dual 4" double wall, polished T304 stainless steel tips with beveled edges. It has just enough exhaust presence with elevated sound to Get Noticed, plenty of opportunities to Feel the Performance, and is packaged in a design without the excessive drone.

Application: 2013 thru 2018 Focus ST 2.0L EcoBoost

Hear the Difference
  • How does it sound? The Focus ST MRT Extreme Sport Catback #91J102 has a rally sport performance sound.
  • Is there drone or resonance? The drone is noticeable but tolerable.
  • What if I step on it? Wide-open throttle increases exhaust loudness and tone to 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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Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 1 Write a review »

5 of 5 Best sounding Focus ST Exhaust!! June 29, 2022
Reviewed by: Dave from Taylor  
I’m completely blown away by the sound of this exhaust! Great quality product that fit perfectly. I highly recommend this to other ST owners.