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Bootmod3 ECU Tune – BMW B48 / B46 (230i / 330i / 430i / Mini JCW)The Bootmod3 (BM3) ECU Tune redefines tuning for BMWs 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. CustomROM Features Map Switching (On the Fly): Instantly switch between up to four maps using

Built from durable aluminum with a wrinkle black finish

Extends the factory coolant tank harness by 60 inches

Accepts standard 3-inch couplers

Release the brake pressure for a "rolling launch" or extra surge of power

TRANSMISSION TYPE

Required for S4 & S5 Stage 2 dual pulley files

Brackets to eliminate movement under engine torque

30 sec map switch)

0T EA888 Gen1/2 TSI engines*

Launch control torque increased for faster launches

8T (MQB) is the best bang-for-your-buck performance modification you can make for your turbocharged engine

Reduced turbocharger lag