Best Exhaust for Focus ST: Time to Upgrade to Aftermarket Mufflers!

best exhaust for focus st
Photo courtesy TuRbO_J via flickr. Used under a CC BY 2.0 license.

Question: The Ford Focus ST is a fun car with a turbo and manual gearbox transmission. Who makes the best exhaust for Focus St cars? Let’s explore Focus ST exhaust options.


Affiliate links / Images from Amazon Product Advertising API

The AWE touring edition cat back exhaust offers a great sounding, loud, deep tone. It sounds amazing, with frequent gurgles and pops.

The touring version is tuned so there is no drone. The lack of interior drone makes all the difference on 30 minute commute to work.


Borla 140504 Cat-Back Exhaust System for Ford Focus ST
  • Product type :AUTO PART
  • Package dimensions :114.3 cm L x26.67 cm W x78.74 cm H
  • country of origin :China
  • package weight :41.0lbs

Affiliate links / Images from Amazon Product Advertising API

Borla makes a full exhaust for Focus St cars. Borla claims no drone with their kits.

At idle, the muffler is sounds deep and rumbles. At wide open throttle, it offers a clean, aggressive tone.

Ford Racing / Mountune cat-back exhaust for Focus ST

It is tough to go wrong with a high performance catback exhaust direct from Ford.

This muffler and pipe set can be purchased directly from Ford Racing.

It features 2.5 inch stainless steel pipe and a mandrel bends, which are tuned to eliminate cabin drone.

The 2.5 inch size may limit flow if you are doing other high performance engine upgrades.

This is a great option if you want a Ford branded product and want a quiet exhaust option.


Affiliate links / Images from Amazon Product Advertising API

The MBRP catback exhaust offers 3 inch muffler and pipe system.

MBRP offers an excellent bolt-on exhaust system, which sounds good.

This muffler system has a great tone at idle and at wide open throttle.

For the price, this ranks as a great sound to price ratio.


2012-2018 Focus 3" Cat Back Exhaust System ROUSH 421610
  • Fits all 2012-2017 Focus models; Fits 2018 Focus ST
  • High-flow 3" cat-back system made from 409 stainless steel
  • Dual, round 304 chrome tips with rolled edge and Roush logo
  • Includes performance-flow muffler; Uses the same factory mount locations
  • Includes all necessary clamps and hardware for installation

Affiliate links / Images from Amazon Product Advertising API

Roush makes a high-flow 409 stainless steel cat back system that uses factory mount locations.

This muffler is loud but obnoxious. It has a nice growl but has a bit of drone at highway speeds.

What mods should I do to my Focus ST?

Upgrades include a blowoff valve, lowering kit, cold air intake, intake manifold spacer, tuner, short shifter adapter, and a cat back exhaust.

Find the best exhaust for Focus ST MK3s on Amazon.

Previous articleBest Exhaust for 6.2 Silverado and Sierra Trucks with Sound Clips
Next articleBest Exhaust for Indian Scout Bobber with Sound Clips