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mountune High Flow Exhaust, Focus ST 2013-2017
mountune High Flow Exhaust, Focus ST 2013-2017

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Product Code: 2363-CBE-AA



mountune High Flow Exhaust, Focus ST 2013-2017

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 Focus ST (C346 ST) High Flow Exhaust system is manufactured from 2.5” , AISI 304 Stainless Steel (EN58E) mandrel bent tubing with lazer cut flanges. All muffler assemblies are robotically TIG welded AISI 304 Stainless Steel for long life under extreme performance and feature consistent internal diameter throughout the entire length of the assembly. To ensure improved performance while controlling sound, each muffler includes a three- layer Hybrid Synthetic sound absorption packing that eliminates droning, booming, and other undesirable tones. 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.

  • Manufactured from AISI 304 2.5” mandrel bent Stainless Steel tubing
  • TIG welded construction
  • AISI 304 Stainless Steel hanger assemblies
  • Mufflers feature consistent internal diameter
  • 3 Layer Hybrid Synthetic Muffler packing effective to 900c
  • Large 4” Rolled Edge, Polished Stainless Steel Tips with mountune logo
  • Full Width Rear Hanger ensures stable tip location
  • Heavy duty "boss" type clamps
  • Meets 95db Standard
  • Does not affect Ford vehicle warranty
  • CAD Engineered and designed
  • Limited Lifetime Warranty

Average Rating: 5 of 5 Total Reviews: 11 Write a review »

  0 of 0 people found the following review helpful:
Exceptional Product July 17, 2016
Reviewer: Daniel S. from Clive, IA United States  
Not only was it easy to install, minus one broken bolt, it sounds great.  Not loud and obnoxious like most after market exhaust.   This is a great exhaust if you want to keep your car a sleeper.

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  0 of 0 people found the following review helpful:
High Quality Product July 12, 2016
Reviewer: Joshua Anderson from Bay Area, CA  
Shipping was very quick and the entire system arrived in great shape. Each piece was individualy packaged and protected within the larger box. Install was straightforward, albiet a little time consuming at about 3.5 hours. Its a shame the exhaust is under the car because it looks beautiful. Sounds deep and mean under WOT, yet quiet and stock during normal driving. Well done once again Mountune!

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  0 of 0 people found the following review helpful:
Nice tone, not obnoxious July 9, 2016
Reviewer: Michael B from Chandler, AZ United States  
The title essentially covers it. Nice low tone that is still satisfying in high RPM. No drone while cruising all the way back to AZ. If you have the MP275 this exhaust should be on your install list. Not to mention the whole kit is beautiful. Shame it's under the car.

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  1 of 1 people found the following review helpful:
Mountune replaces Cobb May 19, 2016
Reviewer: Michael Schneider from Cincinnati, OH United States  
I have just had the Mountune High Flow Exhaust for my 2016 Focus ST installed by a tuning shop here in Cincinnati and it's a night and day difference from the Cobb cat back system.

I've had the Cobb for about 3 weeks and the droning inside the cabin was unbearable. For a younger set of ears that may be acceptable, but for my 60 year old senses it was too much.

The throttle response also seems to have improved as well. The Cobb system seemed to rob some of the low rpm response.

All in all I'm one very happy new Mountune customer! Will be following with more Mountune upgrades down the line.

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  1 of 1 people found the following review helpful:
Couldn't be more pleased with this exhaust system! April 25, 2016
Reviewer: Dustin from Johnson City, TN United States  
The Mountune High Flow Exhaust for the Focus ST is the best on the market! I wanted an upgraded exhaust system but DID NOT want the bumble bee sound that most the others seem to have. This system exceeded my expectations! The new style double wall tip design fills the gap in the back bumper perfectly and the looks are great throughout the underside of the car. The quality of the welds and the system as a whole is 2nd to none. If you're looking for an upgraded high flow exhaust that still allows you to fly under the radar and not annoy fellow drivers... This system is the way to go!
Side note: I had emailed a question about this exhaust system and Ken with Mountune emailed me back within 20 minutes. I placed my order for the system later that day and Mountune shipped the order the same day! OUTSTANDING CUSTOMER SERVICE!

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