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mountune High Flow Turbo Back Exhaust - Focus ST 2013-2017
mountune High Flow Turbo Back Exhaust - Focus ST 2013-2017

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Sale price:$999.00
Savings: $451.00

Availability: Usually Ships in 24 Hours
Product Code: 2363-TBE-AA


mountune High Flow Turbo Back Exhaust - Focus ST 2013-2017

Includes High Flow Sport Cat Down Pipe and Exhaust system

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 Turbo Back Exhaust system is manufactured from 2.5” (3" Down Pipe) , 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.

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. 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 may be required for optimal performance.

  • Large diameter motorsport type, high flow 200 cell count catalyst
  • 3” AISI 304 Mandrel bent Stainless Steel tube
  • Robust OE Type mounting bracket and hangers
  • 8” Stainless Steel Flex joint
  • Manufactured from AISI 304 2.5” mandrel bent Stainless Steel tubing
  • TIG welded construction
  • AISI 304 Stainless Steel hanger assemblies
  • Off road and motorsport use only
  • 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
  • Meets 95db Standard
  • CAD Engineered and designed
  • 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.

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