Bootmod3 ECU Tune – BMW B48 / B46 (230i / 330i / 430i / Mini JCW)

The Bootmod3 (BM3) ECU Tune redefines tuning for BMW’s turbocharged B48 and B46 engines, giving you full calibration control and instant flashing through the OBD port. Whether stock or full bolt-on, Bootmod3 delivers significant power gains, improved throttle response, and advanced tuning features, all while retaining OEM driveability and safety systems.

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CustomROM Features

• Map Switching (On-the-Fly): Instantly switch between up to four maps using steering wheel cruise buttons.

• Flex-Fuel Tuning: Automatically adjusts for any ethanol blend (0–100%) without reflashing.

• Anti-Lag: Builds boost while stationary or rolling for immediate power.

• Integrated Map Editor: Access thousands of editable tables for detailed tuning.

• Ethanol In-Dash Display: View ethanol content directly on your tachometer.

• High-Speed Datalogging: Log 80+ RAM channels at industry-leading speed and resolution.

• Torque Limit & Boost-By-Gear Control: Configure and optimize boost delivery per gear for better traction and drivability.

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Power Gains (OTS Maps — B48/B46)

Power increases vary with model, fuel, and supporting modifications.

Aggressive burble (AGG) maps available for select configurations.

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Supported Vehicles (B48 / B46 Engine)

• BMW: 120i, 125i, 220i, 225i, 230i, 320i, 330i, 430i, 530i, X1, X2, Mini JCW

• Mini (B48 variant): Cooper S, JCW, Clubman, Countryman

• Covers both B46 (North America) and B48 (Global) engine variants.

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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.

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Disclaimer

For off-road use only. Not intended for use on public roads.