FSWERKS Stainless Steel Catback Sport Exhaust System - Ford Fiesta ST 1.6L 2014-2019

  • $625.00
  • 41 reviews

Low Inventory

The FSWERKS Sport Exhaust system for the Ford Fiesta ST uses 2.5" diameter mandrel-bent T304 stainless steel tubing for maximum flow and horsepower. The FSWERKS Sport Exhaust system features a stainless steel high-flow straight-through muffler design and is finished off with beautifully polished dual 3" angle cut T304 stainless steel tips. Also included are the necessary clamps, hardware, and instructions to allow for an easy installation. All FSWERKS stainless steel exhaust systems are backed by a 5-year limited warranty. This system retains all emissions equipment and is perfect for Fiesta ST owners who wish to have a 50 state street legal exhaust.

Peak Dyno Gains
+5.4whp & +4.3wtq
Max Dyno Gains
+11.5whp @ 6,200rpm & +10wtq @2,800rpm

Light Weight Design
• Stock OEM exhaust system weight = ~33lbs 
• FSWERKS exhaust system weight = ~28lbs

Stainless Steel Tubing
• Mandrel bent heavy wall T304 stainless steel construction
• Provides optimal flow

Precision Welding
• Tig and Mig welds are used on our system

Stainless Steel Flanges and Hanger Rods
• All of our exhaust flanges are laser cut out of T304 stainless steel and our hanger rods are cut from solid bars

Dual Angle Cut Tips
• Precision angle cut tips for an aggressive look
• Stainless Steel with etched FSWERKS logos

Customer Reviews
4.9 Based on 41 Reviews
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FSWERKS FSWERKS Stainless Steel Catback Sport Exhaust System - Ford Fiesta ST 1.6L 2014-2019 Review

Sport exhaust system

10/10 fitment. The sound is low deep tone and has no drone at all which is good, but I do wish it was a bit louder on wide open throttle. Other than that, cannot complain at all. Fit on 2019 FiST

Christian M.
United States United States
FSWERKS FSWERKS Stainless Steel Catback Sport Exhaust System - Ford Fiesta ST 1.6L 2014-2019 Review

The best Catback system so far !

It was incredibly easy to install, quality was very impressive, performance improvement very noticeable.

Andres R.
United States United States


Thank you for the great feedback Andres and posting your picture :)

FSWERKS FSWERKS Stainless Steel Catback Sport Exhaust System - Ford Fiesta ST 1.6L 2014-2019 Review

Amazing Quality and Sound

Easy installation, quality sound, and great customer service. I literally made my decision via IG communication and sound clips that FSWerks had posted. This exhaust is exactly what I was looking for. Bigger tips, a tad more sound over stock, and wife approved in regards to drone (none). Car doesn’t bring much attention unless I mash the gas. I love it. Now I just need to order my FSWerks license plate and eventually an intake. You guys rock. -Chris L IG: CP_Lott

Christopher L.
United States United States
FSWERKS FSWERKS Stainless Steel Catback Sport Exhaust System - Ford Fiesta ST 1.6L 2014-2019 Review

Great Budget Exhaust for “sleeper” mode

I was looking for a cheap but great quality exhaust for my Fiesta ST 2019. It is really easy to install if you have how to lift the car. Everything fits perfectly but you might need 2 persons to align correctly the exhaust. BTW, the exhaust was exported to my country in Latin America without any issue!

Juan O.
United States United States
FSWERKS FSWERKS Stainless Steel Catback Sport Exhaust System - Ford Fiesta ST 1.6L 2014-2019 Review

Perfect upgrade from factory

Fantastic system. Very high quality welds and joints. Sounds is perfect. Slightly louder on idle but much louder on wide open throttle. Would definitely recommend.

Ryan D.
New Zealand

Best bang for your buck

It sounds amazing! I don’t have to have my radio turned up all the way to hear music also can now cruise down the highway with out drone.

Colin M.
United States United States

Great budget exhaust

Previous owner had a glass pack that would drive me insane with the drone, after reading reviews of this exhaust I purchased it. Happy to say all the reviews were correct, great sounding exhaust that does not drone.

Jesus O.
United States United States

Excellent quality

The build quality was excellent. It had great looking welds all around, along with great installation instructions. Easy to install by yourself. It's quiet for normal driving, but makes a nice deep tone at higher revs without resonating. Highly recommend!

United States United States


Thanks for your feedback Daniel :-)


Great product!

Easy install. Combined it with a catless down pipe and thing sounds great. No drone what’s so ever. Has a nice note when you get on it.

Brandon F.
United States United States

Moar roar for less

Added at least 10hp and a sweet sound, but not too loud. Loving this addition to my FiST.

Jody R.
United States United States

Amazing Exhaust!

Been running with the exhaust for a few months and I love it! Makes the car sound a bit meaner and louder! Get some pops when shifting or downshifting if done just right! No drone! Drove for two hours to Santa Barbara and the whole drive was comfortable with no drone. It sounds amazing in the mornings on a cold start. Not to loud unless you want it to be, then floor it! Great exhaust!

United States United States

Great System ... No Disappointments

Product delivered exactly as in photos. Took me 2hrs to install since I had to use a hacksaw to cut the OEM tailpipe. Installation was a breeze with the pipes sliding together without any issues and the heavy duty clamps. I ordered a aftermarket exhaust gasket and the COBB hangers, but since this system is lighter than the OEM system, the OEM hangers probably would have been fine. I extensively researched the systems on the market before deciding on FSWERKS. I was looking for verified torque/HP benefits with a mild increased sound. It's exactly what I wanted. Thank you FSWORKS.

United States United States

Great system and works with trailerhitch

Called 1st to ask questions. I have the trailer hitch installed. The guy I spoke to upfront honest said he didnt know how the system would work with the hitch. He gave me measurements, checked and took a chance. No worries it goes together better than with stock exhaust. I had knocks on rough bumps with stock. None with fswerkz system. Again sound great worth every penny. Super easy to install. Instructions dead on.

Brian S.
United States United States

I like this exhaust

Easy to install. Sounds awesome! It's not too droney on the highway, but makes the car sound more aggravated than stock.

Matthew W.
United States United States

Fiesta St Exhaust

I'm a 74 year old rodder, now reduced to driving a tuner, hahaha....needed a little punch & exhaust note for my little ST, so went with a FSWERKS cat back system. Easy installation, quality system, not too loud, exactly what I was looking for. Would recommend it highly to anyone!

Paul R.
United States United States

Awesome exhaust

All the awesome noise you want with zero drone. It gives a lot of burgles on deceleration and the cold start was more aggressive than I thought would be too. Changes all the noises in the best ways without the drone and I couldn't be happier. Cheaper than many other name brands out there which is a huge plus. Paired with a Whoosh catted downpipe

United States United States

Minor confusion

I bought this exhaust for my car 2-3 years ago. I noticed there seems to be a whole in the muffler in the bottom. One of my friends suggested that is was intentional to let out moisture. I'm not sure. Other than that. On stock turbo and stock downpipe it drone a tad until it broke in more. With a hybrid turbo and hiflow catted downpipe it droned less. With a bigger turbo and catless downpipe there's NONE. I put 1000 miles a week on my car and this is the right amount of loudness. I highly recommend


Perfect for city vehicles

Super great exhaust, slightly louder at cold start, but quiets down after 20 seconds. Sound super good under throttle, just the perfect tone without the rasp that is not always welcome on 4bangers. But at highway driving or off-throttle, it quiets down and isn't intrusive. Definitely get this if you are concerned with pissing off your neighbours, you can seemingly get the best of both worlds with this exhaust

Mike Z.

Fast and sounds great

Shipment was quick. As for the exhaust sound, i love it. It was like stock but louder however not annoying. No droning, deep tone.

Mark N.
United States

Arrived on time, great quality,

Arrived on time, great quality, fit and finish. Used it to replace a tsudo performance I'd had on for almost a year and the interior drone finally did me in, so it had to go, there really is no drone with this system, you can just hear the exhaust inside under acceleration but it's still quiet and once your at highway speeds it's all but gone, I can actually hear the tires on the road again. All in all i would tell anyone who has a Fist to purchase this over any other system out there, thank you FSWERKS for an amazing product

Jesse G.
United States


Thanks for your feedback Jesse :-)