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mountune MR300 Focus ST Performance ECU Calibration
mountune MR300 Focus ST Performance ECU Calibration


WARNING : California Residents Prop 65 Information

Availability: This product is emailed within 2-3 working days
Product Code: 2363-MR-CAL


mountune MR300 Focus ST Performance ECU Calibration

This option is for MP275 Focus ST customers who have all the required MR300 hardware (including an mTune) but require an in-field firmware update to their existing handset.

Your mTune can be easily upgraded from MP275 to MR300 Performance calibration specifications. This update is for those that have already purchased the correct components to support the calibration. Simply order online and you will be sent update instructions by email along with a Digital Key that allows you to upgrade you mTune from MP275 to MR300. 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.

When ordering, please include your mTune FMP serial number in the comment section of the order form. The serial number can be found underneath the face plate of your mTune.

Required hardware list:

• mountune alloy intercooler

• mountune induction kit

• mountune high-flow induction hose

• mountune charge pipe upgrade kit

• 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.


This part has been designed and is intended for off-highway application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations relating to emission requirements and motor vehicle safety standards. Click Here for Emissions compliance information.

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 1 Write a review »

  2 of 2 people found the following review helpful:
5 of 5 Just insane July 30, 2016
Reviewer: Justin from Springdale, AR United States  
Upgraded from MP275. Pulls harder across entire rev range. Feels comparable to my friend's RS. Makes the ST something truly wicked.

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