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mountune High Flow Exhaust, Fiesta ST 2014-2017
mountune High Flow Exhaust, Fiesta ST 2014-2017

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Availability: Out of stock until the end of May.
Product Code: 2364-CBE-AB

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mountune High Flow Exhaust, Fiesta ST 2014-2017

mountune has been engineering exhaust systems for years with the objective towards increased power and response coupled with an enhanced exhaust tone and appearance. Our Fiesta ST (B299 ST) High Flow Cat Back Exhaust system is manufactured from 2.5” AISI 304 Stainless Steel (EN58E) mandrel bent tubing with dual 3.25 double walled, polished stainless steel tips.

Additionally, a Helmholtz chamber design is utilized in the rear silencer to cancel out unwanted frequencies. Utilizing this system, despite being more complicated and expensive to manufacturer, ensures back-pressure remains low, providing the optimum in terms of performance while removing as many of the unwanted frequencies and drone as possible.

All muffler assemblies are robotically TIG welded AISI 304 Stainless Steel for long life under extreme performance. Tubing diameter also has a major impact on sound quality and careful consideration was given to size and performance. We have also incorporated slip fit connections at various strategic points to allow for easy installation and adjustment. Limited Lifetime Warranty. Specifiy 3 Door or 5 Door application when ordering.

  • High-flow cat-back exhaust design improves performance
  • Engineered Helmholtz resonator for a less intrusive sound
  • High quality stainless construction with CNC welds
  • Staggered, twin-tailpipe trims with laser-etched mountune logo
  • Limited lifetime warranty
  • Robust OE Type mounting bracket and hangers
  • Manufactured from AISI 304 2.5” mandrel bent Stainless Steel tubing
  • Dual 3.25" AISI 304 polished stainless steel tips with stylish tapered design
  • Robust AISI 304 Stainless Steel hanger assemblies

Average Rating: 5 of 5 Total Reviews: 17 Write a review »

  0 of 0 people found the following review helpful:
Great Product and Customer Service February 17, 2017
Reviewer: Kevin Tailford from Redford, MI United States  
Exhaust was back ordered, but I was in no hurry.  Once the unit was shipped, it arrived quickly, and very well packaged.  So far, the quality looks top notch.  I will be installing this weekend.   I will follow up with more comments once installed.

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  0 of 0 people found the following review helpful:
Mountune 5-Door CBE February 10, 2017
Reviewer: Max from CA  
Quality product with excellent sound.  Drones a bit more than I was expecting at certain RPMs, but I think a sound symposer delete may be necessary to help quiet things down.

I do recommend getting stiffer hangars as the stock hangars move FAR too much and allow the exhaust to bang around under hard driving conditions.

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  0 of 0 people found the following review helpful:
Mountune CBE December 9, 2016
Reviewer: Anonymous Person from Miami , FL United States  
I have a catless downpipe and this muffler and I'm most impressed with the lack of any drone at highway speeds. It's very reserved. If you're looking for a little more sound wot and keep it stock everywhere else you won't do better. I have a hybrid turbo on my FiST as well.

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  0 of 0 people found the following review helpful:
Sounds just as good as it looks!! December 2, 2016
Reviewer: Bret Maiolo from Corpus Christi, TX United States  
This exhaust is absolutely beautiful! The welds are perfect and installation was very easy.  The tone is very deep and sounds great at any RPM. I still have the stock downpipe, but I still get some nice little pops and burbles. I would recommend this to anyone looking for a great quality, mature sounding,  and sexy looking exhaust for your FiST, this is the one!

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  0 of 0 people found the following review helpful:
Excellent November 30, 2016
Reviewer: Dylan Knight from Corona, CA United States  
This is such a good exhaust. The sound is great for the car and theres literally no droning or interior trouble sounds. In terms of power...before I was running about 5.6-5.7 regularly with the mp215 kit using mountunes 31-62mph in 4th gear test, right on what mountune claimed. with the exhaust under the same temps, tune, and same road I was running 5.1-5.3 regularly. Don't really know or care what that adds up to in terms of HP and torque numbers, but it does make the car move quicker for sure.

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