Bootmod3 ECU Tune – BMW B58 (M240i / 340i / 440i / M340i / Supra)

The Bootmod3 (BM3) ECU Tune unlocks the full potential of your BMW B58-powered vehicle with advanced features, real-time customization, and cloud-based tuning control.
Using Bootmod3’s CustomROM system, you can flash maps, log data, and modify ECU parameters directly through the OBD port — all from your laptop or smartphone.

CustomROM Features

Bootmod3’s latest CustomROM adds advanced user and tuner-level capabilities, including:

• Antilag: Build boost while stationary or rolling using the steering wheel cruise buttons and accelerator for instant response.

• Map Switching: On-the-fly switching between up to 4 maps using steering wheel controls — each with unique calibration settings.

• Flex Fuel: Automatically adjusts tuning based on ethanol content (0–100%) when paired with a Flex Fuel sensor.

• New Map Editor: Access up to 5,000 tuning tables for fine-grained control.

• Ethanol In-Dash Display: Shows ethanol % on the tachometer (e.g., 5500 RPM = 55% ethanol).

• Transmission Torque Limit Removal: Raises torque thresholds for smoother high-power operation.

• Datalogging: Capture 80+ advanced parameters at industry-leading sample rates.

Power Gains (F-Series B58 Vehicles)

Based on non-MPPK versions. Actual results vary with mods and fuel quality.

Power Gains (B58-D / Gen 2 Engines – 2020+ G20 / G01 / G02)

Supported Vehicles

BMW Models equipped with the B58 engine:

• 2016–2019 F20/F21 M140i

• 2016–present F22/F23 M240i

• 2016–2019 F30/F31/F34 340i

• 2016–present F32/F33/F36 440i

• 2017–present G01 X3 M40i / G02 X4 M40i

• 2017–present G30/G31 540i / G32 640i

• 2016–present G11/G12 740i

• 2018–present G29 Z4 M40i

• 2019–present G20 M340i

• 2020–present G14/G15/G16 840i

• 2021–present G42 M240i

• 2019–present G05 X5 / G06 X6 / G07 X7

• Toyota Supra A90 / A91

Requirements

• • Bootmod3 License (sold per VIN) — this is what you are purchasing in this listing.

  • OBD ENET cable or Bootmod3 WiFi adapter (sold separately) — required for flashing and datalogging.

Disclaimer

For off-road use only. Not intended for public roads.
Euro Performance Center and Bootmod3 assume no liability for emissions or warranty compliance.