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

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MSRP $805.99
You save $40.00

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!

California Residents: Proposition 65 Warning

Installation Difficulty


Intermediate skill is required for this installation.

Installation Videos

Video Transcript

We’re here with a Roush 3-inch stainless steel cat back exhaust system fitting your 2013 through 2016 Focus St. This Roush cat back exhaust is made of 409 stainless steel and is 3-inch piping front to back. It features full Mandrell bent pipes for a nice smooth flow through a Roush tuned muffler and you get a set of 4-inch Roush polished tips with the Roush logo. The kits going to come with two front pipes, one to connect to your 2013 through 2016 Focus ST and the other one will actually work with a naturally aspirated Focus. This Roush 3-inch exhaust system will work great with mild or even high performance builds.

Vehicle Fitment

This product will fit the following Focus years:

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