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mTune MP275 > MR300 Power Upgrade Kit [Mk3 Focus ST 2015+]

The mountune Racing MP275 > MR300 upgrade offers existing facelift (2015>) MP275 Focus ST owners the chance to upgrade to a genuine 300PS and 470Nm experience - the highest power and torque output reliably achievable using the OE turbocharger.

This kit is for customers that already have the MP275 hardware installed and require the following hardware to upgrade to MR300:

  • 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-flow silicone induction hose
  • mTune handset loaded with MR300 calibration

Once upgraded, power increases to 300PS whilst torque is raised to 470Nm.

mTune features:

  • ECU performance calibration transfer
  • 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 replaces the existing MP firmware and does not allow on-handset switching between MP and MR calibrations without an additional firmware update. This version is also not compatible with vehicles in the USA. Please visit our dedicated website at

Please note: Not compatible with Wagon models.

Customer Reviews
5.0 Based on 1 Reviews
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Filter Reviews:
    LEE F.

    WOW, the Mp275 is no slouch but the difference in power delivery with the MR300 is noticeable straight away, the power delivery is constant right up to 5K rpm then wham another jolt of power & it doesn't tail off till you're well into the red. Coupled with the Mountune big brake kit it's now a different kind of beast all together. The M-tune handset is nice piece of kit too. Highly recommend.