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Downpipe / Sports Cat

The mountune Downpipe / Sports Cat 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.

A large catalyst cross section means increased exhaust flow compared to other smaller catalyst equipped down pipes on the market.

Constructed of 3” primary AISI 304 Stainless Steel mandrel bent tubing with a CNC machined flange that allows easy installation, whilst robust factory type mounting brackets and hangers are utilised to maintain perfect alignment and OE like fitment.

Also incorporated is a 6” stainless steel flexi section to help absorb shock, prevent OE hanger failure, and a reduced the chance of false knock signals causing engine power reduction.

Revised engine calibration will be required for optimal performance and may emit the EML without it.


  • Large diameter motorsport type, high flow 200 cell count catalyst 
  • 3” AISI 304 mandrel bent Stainless Steel tube with 2.5" flanged exit
  • Robust OE type mounting bracket
  • 6” Stainless Steel flexi joint 
  • TIG Welded construction
  • 2 year limited warranty*

Recommended to fit in conjunction with mk7 Fiesta ST Cat Back Exhaust.

*Please contact us for warranty terms and conditions.

    Customer Reviews

    4.9 Based on 27 Reviews
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    Filter Reviews:
      Domm W.
      United Kingdom United Kingdom

      Sports cat

      Fitted as the last piece of the Mr230 kit.it really is a stunning bit of kit, it’s a shame you can’t see it once fitted. The exhaust sound so much nice now. It sounds deeper and burbles loads. Well done Mountune

      Simon H.
      United Kingdom United Kingdom

      Fiesta st180 sports cat

      Excellent service as always from the guy's at mountune, quality you can trust in, will be fitting the sports cat very soon

      David J.
      United Kingdom

      Downpipe/sports act.

      I already have the Cat Back Exaust so I thought I would get the Downpipe Sports Cat and MP 215 power upgrade which will be fitted by my Ford Garage. I did enquire about the MR 230 but got no answer back?. Every thing I have bought from Mountune has been very well packed and very quick delivery. Many Thanks.