MBRP Cat-Back Exhaust System Pro Series 3" Focus ST 2013-2018

MBRP Cat-Back Exhaust System Pro Series 3" Focus ST 2013-2018 is rated 4.1 out of 5 by 8.
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  • 3" Pro-Series Cat Back
  • Stainless Steel Construction
  • Dual 3" Polished Tips
  • Direct Bolt On Installation
MSRP $864.69
You save 19%

MBRP Pro Series 3" Cat-Back Exhaust System for 2013, 2014, 2015, 2016, 2017 and 2018 Focus STs.

MBRP's full 3" cat-back is guaranteed to boost the performance of your Focus ST. The Pro Series cat-back is for the serious performance enthusiast who demands the best of the best. T304 stainless steel construction means this system is durable and will not rust or deteriorate like plain steel exhaust systems. MBRP packs their Pro Series exhaust with the highest chromium and nickel content of any exhaust, producing simply the best system money can buy. A polished mirror finish makes the underside of your Focus ST as attractive as the exterior. Polished dual wall T304 stainless steel tips exit the center of the rear bumper.

Please Note: Ford designed the 2015 Focus ST with four exhaust hangers but only added three on the factory exhaust system. All aftermarket exhaust systems are built to use that fourth exhaust hanger. CJ Pony Parts recommends the purchase of COBB’s Polyurethane Exhaust Hanger Kit (591001).

Each exhaust system is designed with the lowest bend degree angles and smooth mandrel bends so exhaust gases have an easier exit path. This creates faster moving exhaust gases, reduces exhaust gas temperatures and flows much better than stock exhaust. Hundreds of test miles and hundreds of hours are invested into every MBRP system to provide you with the best sound and best performance improvement. Rigorous testing procedures ensure every component will fit as expected. MBRP designs their exhaust kits to be user friendly with simple bolt-on installation. Includes installation instructions.

So what are you waiting for? Upgrade the look, feel and sound of your 2013, 2014, 2015, 2016, 2017 or 2018 Focus ST with MBRP's Pro Series 3" Cat-Back Exhaust System from CJ Pony Parts today!

California Residents: Proposition 65 Warning

Installation Difficulty


Novice skill is required for this installation.

Installation Videos

Vehicle Fitment

This product will fit the following Focus years:

Rated 2 out of 5 by from sounds good, terrible fitment I bought this about 3 weeks ago. installed on my car and it just won't quit rattling. the middle Cobb exhaust hanger won't fit with this part, i had to use the stock one for the resonator assy. the exhaust won't stop rattling. it fits crooked in the channel the car has for the resonator and it rubs and knocks against the frame of the car. before you ask, I did install the adapter pipe facing the correct way. i have the mbrp downpipe and that was a breeze to install. super disappointed in this part. at first I thought maybe I had made a mistake but I have tinkered with it 3 other times and I still can't get it to fit right to where it won't rattle. i watched the install video a million times and they seem to have no problem. I wonder if they just made mine wrong?
Date published: 2017-05-19
Rated 5 out of 5 by from Great product Bought a few weeks ago has great sound and very easy install. Looks good to.
Date published: 2015-04-03
Rated 5 out of 5 by from Great exhaust I bought this exhaust about 2 months ago. It was great from the beginning, CJ Pony Parts had it to me the next day. The exhaust was perfect inside the box, no scratches or bends to it. easy install and an amazing sound. I wanted a noticeable difference in sound but not too much and that is exactly what I got. A great external noise with little to no highway drone.
Date published: 2017-01-10
Rated 4 out of 5 by from Sounds great but the fitting needs looked at The sound is much better in person than the video shows but the exact fit to a 2016 ST needs to be looked at. Had it professionally installed and glad I did after seeing what they went through. Had to pay a little extra to have them do some modifications to make it fit correctly but I am happy I made the purchase.
Date published: 2018-02-20
Rated 3 out of 5 by from Sounds amazing Sounds amazing. The videos dont do it any justice! It sounds better in person. Its a nice deep tone. And doesnt sound ricer. My only complaint was that it seemed like they sent me a used one and some of the tube opening were bent in which i fixed but just very annoying.
Date published: 2016-07-13
Rated 5 out of 5 by from Looks and sounds wondeeful Install was extremely simple, and the end result is something to brag about. MBRP definitely got this one right. The system has no drone at highway speed, but when you down shift to pass that slowpoke in front of you it roars to life.
Date published: 2017-02-25
Rated 5 out of 5 by from Great fit, even better sound Loving the sound of the new exhaust. Good fit and the sound isn’t overbearing on the road, great upgrade compared to stock.
Date published: 2019-04-02
Rated 4 out of 5 by from MBRP Pro Series install Received the shipment, it had damage. One end of the slip fit connections was seriously bent. Had to work it out with a Ball Peen hammer and Dolly. Seems the shipping co. was responsible for the damage however MBRP should look into a better method to protect the ends. Suggest anyone that is doing the install at home, remove the nuts on the flanged end, downpipe connection before you cut the back end. Mentioned in another review, fitment was not perfect so be prepared to do some adjustment and bending of the hangars. Two problem areas, even after tinkering with the alignment of the mid pipe section the middle hangar did not align on my car. Had to do some slight bending to allow the isolater hanger to install between the car and exhaust. As well, the end section, back end of the car, the hangars needed a bit of adjustment. After installing this section in the hangar isolators it was centered perfectly but it was mounting too high, there was interference in the area of the rear where the tips are to exit the back of the car. The hangars on the exhaust needed to be slightly bent up to allow the MBRP tips to drop and fit in the recessed area. Overall fabrication and quality appears to be excellent! none of the above in my opinion should change the mind of anyone wanting to purchase this exhaust kit. If you are planning the install yourself, be patient and be prepared to do some minor tweaking, apart from that its a relatively simple. In the end it looks really nice and sounds pretty mean. Quality, value and appearance are 5's the adjustments are the only reason I gave an overall of 4.
Date published: 2019-12-16
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Does this come with any gaskets?

Asked by: ST27
It comes with everything shown in the second image, the installation video and itemized in the installation instructions linked on this page.
Answered by: CJPP Dave
Date published: 2018-02-19

Will this void the warranty on the car?

Asked by: aponygirl31
Unless the product in question is directly responsible for an issue, your warranty should remain intact. Read up on the Magnuson-Moss Warranty Act for more details.
Answered by: rk cjpp
Date published: 2017-11-03

What is the difference between the XP and the Pro series?

Asked by: JAK_SPYRO
The XP series is 409 steel and the Pro series is 304
Answered by: Thatguy21
Date published: 2019-03-22

Is it mandatory to use the Cobb exhaust hangers or can you use stock?

Asked by: DeVries97
You can use stock but we strongly recommend using the COBB.
Answered by: CJPP Dave
Date published: 2017-06-05

What is the advantage to this over the MBRP Cat-Back Exhaust System Aluminized Series?  

Asked by: CamshaftJohn
The aluminized one or the S2400AL is a cheaper softer metal that will rust and break down over time. However the S2400304 is made out of 304 stainless steel and will not rust or break down. Its worth the extra money.
Answered by: Dougb
Date published: 2016-11-03

Just purchased 2016 Focus ST. Just wondering about the mbrp 3" exhaust package. Possible to do without the catalytic converter?  that would increase power and speed wouldn't it? 

Asked by: vanitee
Yes, going without the catalytic converter would increase power over the stock downpipe and the downpipe with a cat.
Answered by: Rick CJs
Date published: 2016-07-30

How is the drone in the interior? 

Asked by: BillyS
I just recently installed and must say there is no drone at all. 
Answered by: jonw
Date published: 2016-11-03
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