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whoosh spec Thermal R&D 3" cat back exhaust 2014-2019 Fiesta ST

$ 949.00 $ 1,049.65
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NEW and Exclusively available at whoosh motorsports, a new version of the very popular Thermal R&D exhaust system for the Fiesta ST!
  • 3” T304 Stainless Steel Cat back System
  • Mounts to OEM catalytic converter.
  • Utilized OEM Hangers, Tip Fits OEM Valance
  • Brush finish throughout with Black Satin powder coated 2.5" tips

When the Ford Fiesta was finally introduced to the North American market, the engineers at Thermal were eager to get their hands on the car and see what we could do with the sound and performance. 

We started with the cat back system, keeping in mind the downpipe for the full turbo-back systems would be necessary. A 3” system made was the ultimate choice, and the dual polished 2.5” stainless tips gave the system a more finished aftermarket look.

To address the drone issues that can arise from the larger 3” tubing we added a straight through resonator on the mid-pipe and a resonator on the rear section. This allows for no restriction when accelerating, but deflects the unpleasant tones that can creep in while cruising.

 

With the Ford Fiesta finally being introduced to the North American market, the engineers at Thermal were eager to get their hands on the car and see what we could do with the sound and performance.

 We started with the catback system, keeping in mind the downpipe for the full turbo-back systems would be necessary. A 3” system made was the ultimate choice, and the dual polished 2.5” stainless tips gave the system a more finished aftermarket look.

 To address the drone issues that can arise from the larger 3” tubing we added a straight through resonator on the mid-pipe and a side branch resonator on the rear section. This allows for no restriction when accelerating, but deflects the unpleasant tones that can creep in while cruising. Overall, the Fiesta ST Catback exhaust is a system that we are very excited about launching alongside our popular Focus ST system and soon to come Focus RS system. 

Customer Reviews

Based on 6 reviews Write a review


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Customer Reviews

Based on 13 reviews
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Daniel Romanski
100% worth the money

I spent weeks agonizing over an exhaust and after seeing all the great reviews on here I decided to pull the trigger. This exhaust DOES NOT disappoint. It sounds amazing on WOT and has fun burbles and the occasional pop while still being really quiet when just putting around. There is essentially no drone at all and a few of my passengers didn't even realize it was a different exhaust until I got on throttle. It's a perfect balance of fun that isn't too loud and obnoxious. I also really like the black tips they go really well with all the other black accents on my Molten orange ST. Installation was super smooth too, just make sure you buy a new gasket for where it bolts up to the downpipe.

A
Anthony Hemery
Thermal Cat Back R&D Exhaust

Well Engineered!

T
Tim McFadden
Awesome sound!

Sounds great everything that I needed was there. It went together perfectly! Whoosh Motorsports is by far my favorite company to get my car parts from. Highly recommended.

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Zach
Best exhaust

This was by far the best exhaust system I've heard for this vehicle. Perfect fitment, great exhaust note and no drone!

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Fred Galindo
Very nice sounding exhaust! Thermal R & D

I am more than happy with this exhaust. Absolutely no droning and was an easy install for me with a floor jack and jack stands.
Thanks again Thermal & Ron at WhooshMotorSports