Bootmod3 ECU Tune – BMW S58 (G80 M3 / G82 M4 / G87 M2 / X3M / X4M)

The Bootmod3 (BM3) ECU Tune is the most advanced flash tuning solution available for BMW’s twin-turbo S58 engine found in the G80 M3, G82 M4, G87 M2, X3M, and X4M.
Bootmod3’s CustomROM V2 adds features never before available on factory BMW DMEs, offering full calibration control, map switching, flex-fuel tuning, and real-time datalogging — all through your OBD port using a phone, tablet, or laptop.

Developed and tested in-house by ProTuningFreaks, Bootmod3 is a cloud-based platform that combines OEM-level reliability with race-grade tuning flexibility.

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CustomROM V2 Features

• Anti-Lag: Build boost while stationary or rolling using steering wheel cruise buttons for instant power on launch or roll.

• Map Switching: On-the-fly switching between four unique calibrations using steering wheel controls.

• Advanced Flex Fuel: Automatically adjusts tuning for any ethanol blend (0–100%) when a flex sensor is installed.

• Integrated Map Editor: Access nearly 7,000 tuning tables for in-depth calibration.

• Ethanol In-Dash Indicator: Displays ethanol percentage via RPM gauge.

• Transmission Torque Limiter: Configurable within software for seamless power delivery.

• REV2 Controller Integration: For port injection, meth or nitrous control, boost solenoid, or secondary fuel pump management.

• Custom Boost Control & Launch Control (for automatic transmissions).

• Live Tuning: Make real-time map changes directly through the Bootmod3 Map Editor.

• Industry-Leading Failsafe Strategies: Protect your engine with fully integrated DME safeguards.

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Power Gains (OTS Maps — S58, X3M / X4M / M3 / M4 / M2)

ACN 91 maps are for regions where 91 octane fuel quality is lower than 95 RON standards. Lower than 95 RON is not supported.

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Supported Vehicles (S58 Engine)

• F97 X3M (2019–Present)

• F98 X4M (2019–Present)

• G80 M3 (2021–Present)

• G82 M4 (2021–Present)

• G87 M2 (2022–Present)

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Requirements

• Bootmod3 License (sold per VIN) — this is the item being purchased in this listing.

• BM3 WiFi Adapter or OBD ENET cable (sold separately) — required for flashing and datalogging.

• Note: 2019+ models with November 2019 software require OBD unlock. If you have received a November 2019 or later software update, contact support@protuningfreaks.com for details.

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Disclaimer

For off-road use only. Not intended for use on public roads.
Euro Performance Center is not responsible for misuse or emissions compliance.