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Stage 1 Power Upgrade - Golf GTI Mk7.5

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The mountune52 Stage 1 upgrade delivers phenomenal performance for the Mk7.5 Golf GTI (including GTI Performanace Pack models) with manual transmission.

Based on over a decade of tuning vehicles to pass OEM sign-off, the mountune52 Stage 1 offers the highest quality calibration, providing improved drivability, response and of course, a substantial increase in both power and torque, all vigorously durability tested to provide peace of mind that reliability is maintained.

VW have created a fantastic platform, but it's only truly brought to life once the mountune52 Stage 1 calibration is installed. This is (easily) administered yourself via our mTune handset, which not only offers multiple calibrations - including a low-torque version (see more on that below), it also boasts enhanced vehicle functionality, can be used to monitor gauges via the OBD port, and also includes a performance meter as well.

A return to stock option is included, together with a valet and anti-theft option, too.

The mountune52 Stage 1 is available in two versions to fully exploit both manual and DSG transmissions. The DSG version also includes a fully optimised transmission calibration option (you can choose this option below). This is programmed into the TCU (transmission control unit) by the mTune handset, which then allows it to maintain higher torque levels through the revised clutch pressure optimisation. Shifts are faster, giving harder and quicker acceleration through the gears, whatever level of performance your car has.

For manual owners that don't want to fit an uprated clutch kit, the mountune52 Stage 1 GTI calibration includes both a high-torque and low-torque calibration option as standard, so you can still safely run increased levels of performance without the fear of near instant clutch-slip.

You can switch calibrations at any point using the mTune handset, so if you decide you want more performance, or you fit an uprated clutch, even more torque is available in a matter of minutes and all included in the cost.

Whilst not essential, it is recommended to achieve and maintain the quoted power figures under hard use, an aftermarket induction system should be used, like the mountune52 X3, which the Stage 1 calibration has been fully optimised for.


  • Power increased to 310PS
  • Torque increased to 475Nm
  • Supplied as standard with Stage 1 calibration, Low-torque Stage 1 calibration (manual transmission), return to stock, anti-theft and valet options
  • DSG version includes optional mountune52 TCU calibration fully optimised for DSG-equipped vehicles
  • Enhanced launch control
  • Easy DIY installation

In the box:

  • mTune handset complete with five calibrations; Stage 1, Stage 1 low-torque, Stock, Valet, Anti-theft
    Also includes:
    - Gauge display (monitor OBD channels in gauge form)
    - Adjustable shift-light
    - Performance measurements (0-60, 1/4 mile)
    - Datalogger (10 hours max)
    - Fault-code reader
  • TCU calibration (DSG models only)
  • Zip-up case with mTune mount, OBD and USB cables
  • m52 badge

Please Note: Whilst every effort is made to provide calibration support for all known available base variants, due to the number in existence, there may occasionally be a delay in enabling support for your vehicle. Should this be the case, options to provide this support will be made available, or you will be offered a full refund until specific calibration for your vehicle can be provided.

Transmission (select option)
TCU calibration (select option)

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