Roush Cat-Back Exhaust Kit 3" Focus ST 2013-2018

Roush:
421610
Roush Cat-Back Exhaust Kit 3" Focus ST 2013-2018 is rated 4.8 out of 5 by 42.
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Highlights

  • Mandrel Bent
  • 409 Stainless Steel Tubing
  • 3" Diameter Tubing
  • Cat Back Design
MSRP $655.99
$625.99
You save $30.00

Roush 3" Cat-Back Exhaust Kit for all 2013, 2014, 2015, 2016, 2017 and 2018 Focus STs.

This Roush Exhaust kit has a performance-flow muffler and uses 3" diameter tubing that helps the turbocharged Focus expel gasses faster for increased power. Mandrel bent 409 stainless steel tubing also helps to achieve optimum air flow in this system. The whole exhaust system utilizes factory mounting locations for a straight forward install that you can do yourself, at home, with only basic hand tools.

Kit Includes:
- Performance-Flow Muffler
- Mid-Pipe Assembly
- Y-Pipe Assembly
- Dual 4" Exhaust Tips
- All Necessary Hardware
- Installation Manual

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).

This Roush 3" Cat-Back Exhaust Kit for all 2013-2018 Focus STs features dual, 4" round 304 chrome flashed tips with rolled edges and stamped Roush logos, center exiting the car. Roush's cat-back enhances the exhaust note and pitch of your Focus ST for a high-performance sound that will surely garner some attention. Between the large diameter piping used, the straight-forward uninhibited air path and performance-flow mufflers, this exhaust kit will achieve some significant horsepower and audible performance gains.

Order a Roush 3" Cat-Back Exhaust Kit for your 2013, 2014, 2015, 2016, 2017 or 2018 Focus ST from CJ Pony Parts today!

Installation Difficulty

Moderate
Moderate

Intermediate skill is required for this installation.

Installation Videos

Vehicle Fitment

This product will fit the following Focus years:

Rated 5 out of 5 by from Awesome Sound I bought this exhaust about a month ago. I had reservations because I had read several reviews saying it was too loud. For me, that was not the case. The exhaust has a deep tone that sounds great when you're accelerating quickly and has a nice little burble when decelerating. As much as I love it, however, it does have a drone when you're out on the highway cruising at 70+. I wish this were not the case, but it is. This is not so much a problem for me. I don't mind it. But I know if my girlfriend were to come along for a ride, it would annoy her. Overall, I give the product my recommendation and five stars. Also, CJ Pony Parts delivered the product extremely fast. It may be different for you, but it took them only 3 business days to deliver this to me and it was FREE.
Date published: 2015-03-25
Rated 4 out of 5 by from Starts out loud but mellows out Bought this exhaust because I wanted something that sounded mean, but was not overly expensive. Many people have expressed concern with it being too loud. I'd have to disagree. The exhaust is loud between 2500 and 3000 rpm, but very mellow everywhere else in the range. For the first 500 miles the exhaust is very loud, but once it breaks in the sound is deep and not overly loud. In my opinion it sounds like it should have from the factory, like a performance hatch. In terms of performance, throttle response is noticeably better, but I don't think there is much hp increase. Overall, great option for an inexpensive exhaust.
Date published: 2015-08-17
Rated 4 out of 5 by from This thing is sweet! Bought this last week, CJ Pony Parts had it to me on the west coast in 6 days with free shipping. Looks killer, sounds awesome. It has a deep throaty tone and absolutely screams at WOT. Only complaint is the loud drone at freeway speeds. On level or downhill portions of freeway, is not too bad. But any type of incline and it's loud in the cockpit.
Date published: 2016-08-01
Rated 5 out of 5 by from Money Well Spent I love this exhaust system. Went with this one instead of any others because of the build quality and of course the sound. This system is loud, but not too loud. I also run this with a cat-less downpipe, and if you keep from steppin' on the gas, you can still tiptoe around town. As soon as you mash the throttle, however, people know you're comin'. I also love the crackles and pops that it has during decel, and has a nice and aggressive tone. People complain of drone, and yes it has -some- but nothing that the radio can't cover up. Seriously, I can't even hear this if I have my music blasting. Overall, I would definitely buy this again over every other exhaust out there. P.S. even my girlfriend loves it.
Date published: 2016-04-21
Rated 5 out of 5 by from INLOVE WITH THIS SYSTEM I bought this CBE from roush through the great people here at CJPonyParts and got it within 3-5 days. I put it in myself in a friends garage and didn't take long to do really easily actually. The only hard part was cutting off the old and figuring out how far you want your tips to stick out lol. Thought nothing of it at first until putting under a load just a quick pull and my god it's ear filling and puts a smile on your face. Subaru owners take a lot of liking to it and that should tell you something but if you know how to fiddle with your clutch and throttle it will pop and bAckfire sometimes crackle and pop three times at once. Drone isn't bad unless highway driving but cmon. Who buys a roush system and cares about that. If you don't like loud and attention and drone it may not be for you but if your a car loving loud exhaust having spazz like me you'll be Inlove. Can't wait for my non cat downpipe next =D
Date published: 2016-02-02
Rated 5 out of 5 by from great exhaust Very simple install. Fitment was great and sound quality even better. Great sounding exhaust system with deep tone.
Date published: 2016-08-31
Rated 5 out of 5 by from Great tone! This exhaust is perfect for me. Not too loud unless I floor it, it's the best exhaust on the market if you ask me. Quick and easy install as well, a little more difficult if you do it on jack stands at home like I did.
Date published: 2016-04-06
Rated 5 out of 5 by from ST Roush exhaust kit. This give the car such a euro sound. It makes the car driving experience fun. I so glad I put this on my ST
Date published: 2015-05-11
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Does this fit an 18 ST?

Asked by: devthedude
Yes it does.
Answered by: rk cjpp
Date published: 2019-04-21

Will this fit with the cobb offroad downpipe you sell?

Asked by: Nwhit55
The flange on this 3" downpipe will work with smaller diameter cat-back exhaust systems, such as 2-1/4" and 2-1/2". CJ Pony Parts has installed a variety of 3" downpipes onto smaller diameter cat-back systems without any issues.
Answered by: rk cjpp
Date published: 2019-02-07

Do you ship to Mexico, if yes, more or less how much does it cost the exhaust system considering shipping to Mexico? 

Asked by: MarioMorga
To get a shipping quote and total price, add the item(s) to your shopping cart and then proceed to checkout. In checkout, fill out your address info and scroll down to see shipping options and costs to your area including any import taxes and duties.
Answered by: rk cjpp
Date published: 2018-11-01

Will this exhaust void warranty?

Asked by: Austokes
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: 2019-09-21

Do I really need the hangers for this exhaust?

Asked by: Nwash26
It is highly recommended but not necessary.
Answered by: rk cjpp
Date published: 2018-05-22

Will this exhaust work with an mbrp off road catless downpipe

Asked by: Chris_yurman
Yes it will.
Answered by: rk cjpp
Date published: 2018-05-10

Will this pass California emission?

Asked by: Fredd66
We don't keep track of the aftermarket part laws in any area, so we'd encourage you to check the list of official approved CARB parts here: http://www.arb.ca.gov/msprog/aftermkt/devices/amquery.php.
Answered by: rk cjpp
Date published: 2018-02-26

Will I be able to pass inspection with this cat back exhaust? Roush Cat- Back, 2017 Focus ST

Asked by: WST05
You would have to check your local emission inspection laws in your area.
Answered by: rk cjpp
Date published: 2017-12-20
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