Search our store

2 reviews


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

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

The kit is based on the market-leading MP275 upgrade which consists of:

  • Large-capacity alloy intercooler (powder-coat finish in satin black - with optional logo)
  • Low-loss cast crossover duct with silicone hose (painted satin black with detailed fins and logo)
  • High-flow dual-entry air filter

In addition to this, the MR300 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-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 is not compatible with vehicles in the USA. Please visit our dedicated website at note: Not compatible with Wagon models.

Customer Reviews
5.0 Based on 2 Reviews
Write a Review

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:

    Had the MR300 installed on my Focus ST and i am a happy customer. For me the car was quick before but with this upgrade you can notice the increase. Love the sound of the airflow and the instant power increase is epic, so addictive. The exhaust is not loud, but i did not want a loud exhaust. You notice a difference to stock and it looks impressive too. I will definitely be returning to Mountune for more upgrades. Ryan and the team were very helpful and the waiting room was comfy as ****.

    United Kingdom
    Mr300 for Focus st face lift

    Very good quality items exhaust is not ****** just the right amount of noise in my opinion and everything is as easy as you would hope to fit only problem was there was no instructions with anything but managed to get it all on in end with the help of a good mechanic