MR300 (mTune only)

This option is for customers who wish to upgrade their facelift (2015>) Focus ST to MR300 using an mTune and who fall into one of the following three categories:

• MP275 customers who have all the required hardware installed for MR300 but require an mTune and MR300 calibration.

• MT275 customers who have all the required MR300 hardware (including an mTune) but require an in-field firmware update to their existing handset.
In-field firmware updates are facilitated via a bespoke upgrade key. Once ordered we will send you steps to follow in order for you to provide us with your specific mTune serial number. A key will then be generated and sent to you which will enable you to update your mTune's firmware using the AP Manager software.

• Customers running all the required MR300 hardware but using standard software, requiring mTune with MR300 calibration.

Required hardware list:
• mountune alloy intercooler
• mountune induction kit
• mountune high-flow induction hose
• mountune charge pipe upgrade kit
• mountune downpipe / sportscat
• mountune cat-back exhaust 

Please note: Installing the MR300 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. In any such instance no warranty is offered or implied by mountune.

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
  • Carbon fibre effect faceplate
  • mTune zip-up case

Please note: This calibration version is not compatible with vehicles in the USA. Please vist our dedicated website at www.mountuneusa.com


Customer Reviews

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Customer Reviews

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    Mark Warren


    Great service from Mountune HQ again. The MR300 tune is a map that works well within the safety perimeters of the cars capabilities, and when driving around town feels quite stock. It has a linear feel to it, smooth but quick acceleration throughout the rev range and gear box. Its definitely at its happiest in 4th gear at 5500 rpm where its just a beast! Coupled with all the bits that make up the MR300 pack and a Quaife differential, RS Clutch and Re-circulation valve which were of course fitted by Mountune, its a real treat to drive. All in all a quality product supplied by Mountune yet again, thanks guys.

    United Kingdom

    M 300 tune only.

    Took under ten minutes, to flash tune to ecu , thanks, J.

    United Kingdom

    Mr300 update

    Happy with service and very simple to install. Can feel the difference in the car a lot more fun to drive !