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mountune EFR Turbocharger Upgrade Downpipe
mountune EFR Turbocharger Upgrade Downpipe


WARNING : California Residents Prop 65 Information

Availability: Out of stock.
Product Code: 2363-TU-Z

Down Pipe Type:


mountune EFR Turbocharger Upgrade Downpipe


2363-TU-Z2 (includes sport catalyst) - shown

The mountune Turbocharger Upgrade Down Pipe has been engineered to reduce exhaust back-pressure at the turbocharger allowing faster response and additional power. Features include an optional 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. This product is for off road and motorsport use only.

  • Optional 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
  • For use only with mountune Focus ST Turbocharger Upgrade. Not compatible with stock turbocharger.


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: Average Rating: 4 of 5 4 of 5 Total Reviews: 5 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 Quality August 5, 2017
Reviewer: Thomas Rossland from Drammen, Buskerud Norway  
Essential with the MRX turbo kit. good fit and quality

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  1 of 3 people found the following review helpful:
1 of 5 Customer Service/Shipping needs HELP! May 21, 2017
Reviewer: Jake S. from Clive, IA USA  
I have not had a chance to get this product installed yet as I am out of the country, however, my experience with mountune as a whole is not good.  Their customer service is below poor, you have to stay on them to make sure you stuff even ships.  

The down pipe shows will ship in 48hrs when I placed my order.  Approximately 15 days later I had to contact Mountune to find out why my stuff hadn't shipped.  They didn't have a reason.  

Changes need to be made in their logistics channels.  

Once I get my part installed I will adjust my review as necessary.

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  0 of 0 people found the following review helpful:
5 of 5 A must.. November 20, 2016
Reviewer: Kenneth Kiesow from Monroe, WA United States  
Obviously, If you want the MRX turbo. Go with the catted, if you love the environment ;-)

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  0 of 0 people found the following review helpful:
4 of 5 Great quality, some fitment issues but rectified April 5, 2016
Reviewer: Chris Cata from Omaha, NE United States  
The EFR downpipe was an amazing quality build.  There were some fitment issues with the first unit sent. It caused some installation issues but Mountune stepped up and offered immediate replacement of the unit once notified.  So with that I have no problems with the unit - matched up great with the Mountune catback exhaust I already had.  Sound is great, no drone, and a bit more throaty.

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  0 of 0 people found the following review helpful:
5 of 5 EFR Downpipe February 7, 2016
Reviewer: Robert Draheim from California, MD United States  
Excellent quality.

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