The M-Tuner is the first and only at-home OBD flashing utility! Developed by M-Engineering, M-Tuner integrates all features of the M-Logger and adds them with the ability to flash anytime, anywhere!

The M-Tuner is the first, and only, at-home OBD flashing utility! Developed by M-Engineering, M-Tuner integrates all features of the M-Logger and adds them with the ability to flash anytime, anywhere!

There is never an added cost for original purchasers when updating your calibration to different off-the-shelf stages such as Stage 1, Stage 2, and Stage 2+.

What’s Included?

• M-Tuner Dongle for OBD Flashing
• USB Cable
• M-Engineering maps built for your M840T (see calibration notes)
• On-the-fly Live Map Switching (no extra charge)
• M-Engineering Support

Vehicles supported by this version of M-Tuner:

• McLaren 720S – Calibration Notes
• McLaren 765LT – Calibration Notes coming soon!
• McLaren 750S – Calibration Notes coming soon!
• McLaren SENNA – Calibration Notes
• McLaren GT – Calibration Notes

The Following exclusive features are included with the M-Tuner Package for 4.0L McLarens:

• Live Map Switching
  • This includes stage calibrations for Stage 1 & Stage 2 vehicle configuration. Remote custom tuning is available for different vehicle configurations as well.
  • Performance Stage 1 & Stage 2 calibrations include the following map slots by default:
  • Slot 1 – 91 Octane
  • Slot 2 – 93 Octane
  • Slot 3 – 100+ Octane
  • Slot 4 – Valet (Limits boost, load, and throttle)
  • *Please contact us at time of ordering if you wish to have different map slots.
• Datalogging
• Live Data
• Clear Faults
• Dyno Mode Enable/Disable
• Auto Start/Stop Disable
• Left Foot Braking
• Kickdown Disable
• Loud Start

More custom features for racing and motorsport applications can be added and are located under the M840T Motorsport Tuning Package.  Features such as Rolling Anti-Lag, Boost by Gear, etc…

*M-Tuner requires a one time only bench procedure which requires the ECU to be sent to M-Engineering HQ.

Pro Tuning and custom calibrations are also available for those who are looking to optimize their McLaren for parts configurations or fuels not listed in our map notes.

Important Notice for McLaren 750S Owners

Early model McLaren 750S vehicles are equipped with an “822” operating system in their ECU. This calibration has known drivability issues and has been deemed obsolete. McLaren offers an updated “830” operating system, available through dealerships with a firmware update.

To ensure optimal performance and compatibility, M-Engineering requires all ECUs to be updated prior to tuning. If an ECU arrives with the “822” OS, we will return it so the necessary dealership update can be completed before proceeding with any flashing services.

For further details or assistance, please contact us.

Disclaimer: You accept responsibility and risks of any tunes and added features by M-Engineering. If you are not the end user of the car, you will be solely responsible for notifying the purchaser and/or customer they also accept the responsibility and risks of these and M-Engineering is not liable. M-Engineering is also not liable for voided warranties due to installation of our products. 

Return Policy: All sales are final and non-refundable. M-Engineering provides specific software calibrations for individual vehicle use and is not liable for misuse or vehicle behavior due to installation error or mechanical issues. M-Engineering will work one-on-one with individuals to assist with remote diagnosis to vehicles to our best ability and advise next-action steps as needed. End-users are responsible for vehicle maintenance, integrity of aftermarket parts installation, and having their vehicles up-to-date with their manufacturer’s latest updates and TSB’s.

We’ve got your back!

At Function Factory Performance, we prioritize customer service that goes above and beyond. We recognize that searching for the appropriate parts can be daunting, and we’re dedicated to guiding our customers through the process with ease. We ensure our customers receive the most innovative solutions by staying ahead of the curve through education and awareness. You can call us at (480) 576-8606, send a direct message through our live chat, or click here to contact us via email. Our team is always eager to assist and make your experience with us simple, stress-free, and enjoyable.

Make sure to follow us on Instagram: @FFPerformanceAZ and Youtube.

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