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mountune Sport Down Pipe, Focus ST 2013-2017
mountune Sport Down Pipe, Focus ST 2013-2017

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Product Code: 2363-DPSC-AA



mountune Sport Down Pipe - Focus ST 2013-2017

The mountune Sport Cat Down Pipe has been engineered to reduce exhaust back-pressure at the turbocharger allowing faster response and additional power. Features include a large diameter (5”) motorsport type, 200 cell count metal substrate honeycomb catalyst to ensure effective, ultra high flow performance in extreme environments. Large catalyst cross section means increased exhaust flow. Constructed of 3” AISI 304 Stainless Steel mandrel bent tubing with a CNC machined V-Band flange that allows easy installation. Additionally, robust factory type mounting brackets and hangers are utilized to maintain perfect alignment and OE like fitment. We also incorporate an 8” stainless steel Flex Section to help absorb shock and prevent OE hanger failure. Revised engine calibration will be required for optimal performance. This product is for off road and motorsport use only.

  • Large diameter motorsport type, high flow 200 cell count catalyst - Larger than the competition- ensures higher flow rate.
  • 3” AISI 304 Mandrel bent Stainless Steel tube
  • Robust OE Type mounting bracket and hangers
  • 8” Stainless Steel Flex joint-will not damage lower exhaust hangers like others on the market.
  • Compatible with 2.5” and 3” exhaust systems
  • TIG Welded construction
  • Limited Lifetime Warranty


This part has been designed and is intended for off-highway application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations relating to emission requirements and motor vehicle safety standards. Click Here for Emissions compliance information.

Average Rating: 4.5 of 5 Total Reviews: 6 Write a review »

  0 of 0 people found the following review helpful:
Great buy. July 23, 2016
Reviewer: Justin O from Springdale, AR United States  
Sounds great with Borla cat back. Slight increase in exhaust volume and can more clearly hear burbles on down shifts and turbo spooling.

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  0 of 0 people found the following review helpful:
Nice Down Pipe June 4, 2015
Reviewer: anthem chen from New Taipei City, Taiwan  
Nice down pipe, but the packaging is not strong enough.

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  0 of 0 people found the following review helpful:
car March 2, 2015
Reviewer: Allen Mckale from New Port Richey, FL United States  
don't really know yet just put it on yesterday still have some questions about the meter hookup. I will get with Randy today hopefully you can walk me through some stuff. does have a nice sound to it and no exhaust leaks

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  0 of 1 people found the following review helpful:
M Sport CAT DP - 2013ST December 18, 2014
Reviewer: Dennis Delby from Arroyo Grande, CA United States  
I have not had a chance to install it yet so I will update my review at that time. As far as build quality, it is superb. As nice as it looks, its a shame it is not visible after installation. Good job Mountune

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  0 of 1 people found the following review helpful:
mountune Sport CAT Down Pipe, Focus ST 2013-2014 December 12, 2014
Reviewer: Rob from Virginia USA  
The quality of this pipe is amazing! The welds are unbelievable. The only thing I had an issue with was the lack of instructions. Measure twice cut once, right?

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