Bootmod3 ECU Tune – BMW B48 / B46 (230i / 330i / 430i / Mini JCW) S4 Lightening-fast shift times

Lightening-fast shift times

5 transmissions may be equipped with an advanced security lock

Massive Weight Savings – Over 20 lbs lighter per side than OEM headlights

delivering an aggressive launch that shaves down acceleration times

See below for a list of Stage 2 hardware requirements

Bootmod3 ECU Tune – BMW B48 / B46 (230i / 330i / 430i / Mini JCW) S4 Lightening-fast shift timesThe 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