Bootmod3 BM3 S55 Tune Licence/License - BMW F80 M3, F82/F83 M4, F87 M2 Competition (F8X) - ECU Remap OBD Flash Tuning Software - Stage 1/2 OTS & Custom Maps, E85/Ethanol, Burble/Crackle, Speed Limiter/Rev Limit, Datalogging, ENET Cable Required

BM3 Licence for BMW S55 engines in F80 M3, F82 F83 M4 and F87 M2 Competition

Unlock serious performance and drivability from your twin turbo S55 with the BM3 licence. This ECU remap solution delivers rapid OBD flashing, easy map switching from your phone, deep datalogging and powerful diagnostics in one package. Perfect for anyone searching for BMW S55 tuning, F80 M3 remap, F82 M4 tune or M2 Competition software upgrade.

We use BM3 on our own shop cars and customer builds and it consistently impresses with strong gains, crisp throttle response and smooth power delivery. It is a proven way to transform your F8X without compromising everyday usability.

Why choose BM3 for your S55

• Fast OBD reflash via ENET cable, no bench unlock required
• iOS, Android and web control for map changes and logging
• Revert to stock calibration at any time and relock the ECU
• Secure cloud storage for your maps and logs
• Live gauges for real time monitoring on your device
• Read and clear fault codes across vehicle modules
• Reset learned adaptations including octane, knock and Valvetronic
• ECU power reset functionality for troubleshooting

Included features and tune options

• One off the shelf map included with the licence purchase
• Log over 200 channels with up to 40 parameters at once
• Built in charting and sharing without third party apps
• Stage calibrations for 95 or 98 RON pump fuel, race fuel and E85 blends
• Support for upgraded turbo setups with appropriate mapping
• Overrun crackle control for that performance exhaust sound
• Raised rev limit and top speed limiter removal where appropriate
• Methanol injection and ethanol blend tuning capability
• Custom throttle sensitivity options
• Back end flash compatibility for piggyback users such as JB4
• Custom tuning available through the BM3 tuner network or self tuning with the integrated map editor

Who is it for

Ideal for F80 M3, F82 and F83 M4 and F87 M2 Competition owners seeking a dependable ECU tune, staged power upgrades and feature rich logging. Whether you want a subtle Stage 1 remap on 98 RON, a stronger Stage 2 with hardware mods or an ethanol blend setup, BM3 has you covered.

What you need

• BM3 licence for S55
• ENET OBD cable required for flashing
• Stable internet connection for initial activation and map management

Fitting and support

Prefer a professional to handle it for you We can supply, install and support BM3 here at MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote or advice on the best calibration for your goals.

Customer results

Our customers consistently report sharper response, harder mid range pull and a more engaging drive. The convenience of map switching on the driveway and the depth of the logging tools make ongoing refinement simple and effective.

Important notes

• Off the shelf maps are optional. Custom calibrations are available via approved tuners
• Some features such as overrun crackle should be used responsibly and may be for track or off road use only

Warranty and emissions disclaimer

Modifying the engine control unit may affect manufacturer warranty. Certain calibrations or features may not be legal for road use in your region. It is your responsibility to comply with local laws and regulations.