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MR165 Power Upgrade Kit [Mk7 Fiesta 1.0 EcoBoost]

The mountune MR165 upgrade is for the mk7 Fiesta 1.0 EcoBoost 125PS and Red / Black 140PS models. 

As the name suggests, the MR165 upgrade kit delivers a performance uplift to 165PS at 6000rpm with 245Nm of torque available from just 2500rpm.

The MR165 upgrade consist of:

  • High-flow induction kit
  • High-flow primary silicone induction hose
  • High-flow secondary silicone induction hose
  • High-flow charge pipe upgrade kit
  • Larger capacity alloy intercooler
  • mTune with MR165 calibration

The MR165 calibration is supplied using an mTune handheld device – for customers who are currently running an MP135 upgrade installed with an mTune, an in-field downloadable firmware update is available at a greatly reduced cost.

mountune's engineers spent a great deal of time developing this kit to ensure that it delivers the optimum level of performance with the OE turbocharger, whilst maintaining the maximum possible reliability of the engine.

The whole kit can be installed in approx 3 hours and does not require a ramp / jacking, nor does it require the front bumper to be removed.

The end result is a quite remarkable level of performance that delivers much more than should be capable from a 1.0 engine! 

As well as the impressive low-down torque, the calibration also refines the pedal map to give a more connected, instantaneous response to the drivers' commands.

With the kit installed, the 0-60mph time drops to 7.2 seconds, a massive 2.2-second improvement over the standard model, with in-gear and mid range acceleration improved upon even more so thanks to the 245Nm readily on hand.

As an MR upgrade, your warranty may be affected as it does not benefit from the same warranty provision that the MP upgrades provide. All parts are covered by our standard 12-month / 12,000 mile warranty against manufacturing defects and all of the silicone hoses are backed by SamcoSport's lifetime warranty against manufacturing defects.

mTune features

  • ECU performance calibration transfer
  • In-field calibration updates
  • 0-60 times
  • ¼ mile times
  • Monitor upto 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 in the USA. Please visit our dedicated website at

This calibration is not compatible with vehicle fitted with thePowerShift transmission or 100ps models. This will also render the Eco mode (if fitted) inactive.

MR165 calibration should NOT be installed on vehicles not equipped with the correct mountune hardware. Power output, driveability and reliability may be affected and mountune are not not able to support vehicles running alternative hardware.

Customer Reviews
4.8 Based on 12 Reviews
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Filter Reviews:
    Matthew M.
    United Kingdom United Kingdom
    Love this Kit

    Transformed my car!! Like you wouldn’t believe! I just wish there were more things available.

    mountune MR165 Power Upgrade Kit [Mk7 Fiesta 1.0 EcoBoost] Review
    MR165, big bang for your buck!

    After deciding to get a smaller car i opted for a 2013 Zetec S, I had some worries about power as i was coming from a 3.0tdi Quattro A4 B& remapped to 260. I picked up the ZS with MR165 fitted and i have never looked back! What a car, and what an engine. Throttle is responsive throughout and the engine feel comfortable in its ability. The exhaust sounds lovely, and with the addition of the moutnune short shifter, roll restrictor and sports springs the little ecoboost is a dream to drive!

    Jason W.

    Fitted to my 125ps titanium x. Massive difference, great fun and the figures dont lie. I Managed 0-60 in the wet 8 seconds flat, previously was hitting around 10 seconds.

    mountune MR165 Power Upgrade Kit [Mk7 Fiesta 1.0 EcoBoost] Review