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2016 - 18 Focus RS MRT Extreme Cat Back Performance Exhaust System 91J000

MRT 304 Stainless Cat-back: 2016-2018 Focus RS #91J000

16-18 Focus RS MRT Extreme Cat Back

2 Reviews
Retail Price: $1,799.99
$
$1,349.99
You Save: $
Loudness: 10 Drone: 2 Performance: 8

Application: 2016 thru 2018 Focus RS
Tune: None Required
Time to Install: 60 Minutes
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Item Code: 91J000
Usually Ships in 1 to 2 Business Days

The Extreme Cat Back is the loudest MRT cat back exhaust for your Focus RS. Owning a 2016-18 Focus RS already shows you prefer a racer's edge to your vehicles. This Ford Focus RS Performance Exhaust turns things up several notches for rally track days, local shows or weekend cruising.

The Focus RS MRT Extreme Cat Back is a complete exhaust system upgrade that's loud, powerful and uncompromising. 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. We use more than 35 years of automotive engineering experience to tune this exhaust to the vehicle's DNA so you don't have to. Watch our demonstration videos below to get a taste of how a new Focus RS cat back exhaust can completely change your time on the road.

Focused Performance in a DIY Package

Our Ford Focus RS Cat Back Performance Exhaust and is constructed in T304 stainless steel. This system includes three-inch CNC mandrel-bent tubes and dual four-inch double wall-polished T304 stainless steel tips with beveled edges. This system is engineered for the best sound to match your vehicle and provides substantially increased horsepower from the increased exhaust flow. Installation in your driveway or backyard takes about an hour using tools you likely already have.

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.

Questions? Call MRT at 734-455-5807 to talk to our team. All MRT exhaust systems are made in the U.S. with a limited lifetime warranty.

Application: 2016 through 2018 Focus RS, 2.3L 4-cylinder

Hear the Difference

  • How does it sound? MRT Extreme Cat Back Exhaust is the loudest sounding exhaust that is always "on".
  • Is there drone or resonance? The drone is noticeable but tolerable.
  • What if I step on it? Wide-open throttle brings out an extreme exhaust roar that screams take no prisoners.

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!

Reviews

Average Rating:
( 2 )
Erwin Rangel from New Rochelle, NY United States
April 1, 2025
awesome sound gun fire backfires
i bought this EXHAUST because its the cheapest that i found in the video it sounds good in person way better. no matter how tight i made those clamps and INSERTED them as far as i could still leaked, i WASN'T happy i had no choice my factory EXHAUST and INTERMEDIATE pipe already cut next day i had school and work. the axel back pipe was to open i count closed it but to weld both pipes were they
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Tyler Boes from Monroe, MI United States
July 18, 2017
Makes the RS sound like it should!
This exhaust system gives the RS turbo noise, depth, and sound. Stock, the RS sound is lacking. Since putting this system on my car, I have turned way more heads. I have seen people jump in their seats when the exhaust pops in sport mode. Being 21, I usually drive the car pedal to the floor, but sometimes I do just want to cruise. This exhaust is easily controlled with the throttle. If you want to
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