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mTune MR230 Power Upgrade Kit [Mk7 Fiesta ST]

Intercooler size


The mountune Racing MR230 upgrade offers Fiesta ST owners the chance to upgrade to a genuine 230PS and 340Nm experience - the highest power output reliably achievable using the OE turbocharger.

The kit is based on the market-leading MP215 upgrade which consists of:

  • Low-loss dual-entry airbox with secondary feed
  • mountune high-flow panel filter

In addition to this, the MR230 upgrade also adds:

  • High-flow 3" down pipe with 200-cell sports catalyst
  • High-flow 2.5" bore cat-back exhaust
  • High-flow charge pipe upgrade kit
  • High-performance alloy intercooler 
  • High-flow silicone induction hose
  • mTune handset loaded with MR230 calibration.
  • Optimised cam timing (via mountune timing tool - included)

Once upgraded, power increases to 230PS whilst torque is raised to 340Nm.

Please note: Installing the MR230 calibration without the correct hardware list above may result in failure to make the quoted power / torque figures, abnormal running, detrimental fuel consumption or engine warning light illumination or in extreme circumstances, damage and / or failure to the engine. In any such instance no warranty is offered or implied by mountune.

mTune features:

  • ECU performance calibration transfer
  • NEW! Anti-theft mode
  • In-field calibration updates
  • 0-60 times
  • ¼ mile times
  • Monitor 6 OBD channels 
  • Adjustable shift light
  • Full data logging
  • DTC reading / clearing
  • Soft touch rear case
  • LCD screen
  • Lanyard pin
  • Removable faceplates
  • Ambient light sensor

Each mTune is supplied complete with:

  • Holster with t-slot mounting
  • OBD and USB connection cables
  • Black faceplate
  • mTune zip-up case

Future mTune firmware updates will allow easy calibration updates, new features to be added and new gauge options to be displayed.

Please note: This calibration version is not compatible with vehicles in the USA. Please visit our dedicated website at

Customer Reviews
5.0 Based on 9 Reviews
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Filter Reviews:
    Christos L.
    The perfect setup for an enjoyable everyday driving experience!

    The best setup all around! No errors, no issues at all after 2 years of installation! No hesitation on purchasing every single item again and again from the beginning! Congrats once again!

    Willy M.
    MR265 to MR230

    Again, thank you Mountune for an excellent day. Ryan, as always is very welcoming and always willing to answer any questions I had for him. I had my 4th service and removal of the MR265 turbo and conversion to MR230. The kit is so suited to every day driving and knew I wouldn't have any worries going back to MR230. A 200 mile round trip but happy to travel for there great service and reasonably pricing.

    mountune mTune MR230 Power Upgrade Kit [Mk7 Fiesta ST] Review

    I visited Mountune a couple of months ago; taking in my completely stock Fiesta ST-3, I left it with Fred and his team for a day, and these upgrades were fitted (All reviews left on each items page) MR230 Kit / Billet Quick Shift / Roll Restrictor / Sport Spring Kit / Symposer Delete / Black Gearknob & Leather Gaiter & Floor Mats MR230 - Its all so good, and what an oddly addictive driving experience that will never get stale! The acceleration and response is incredible compared to stock. The sound of the catback is just right - Its not too ‘yobish’ or ‘ASBO’, its subtly raspy, but its definitely loud when you want it to be! Sounds amazing inside and outside and not an annoying drone in the cabin either (I did have the symposer delete fitted also, highly recommended with the catback and any remap 215 or 230; the ‘real’ noises are so much more satisfying). You really do need to see/hear it in real life; online vids won’t do it the justice it deserves … and that satisfying whistle when you change gear just doesn’t seem to get old either. The good quality of parts give confidence too, that the increase in power and the way the car now wants to be driven, is well capable of taking it. A great all around kit, and worth paying Mountune the noticeable extra cost compared to other available modifiers, for the peace of mind of a great quality fitted kit, by a Ford approved modifier with incredible customer service, throughout the whole process.