Optimized SMG transmission software, available both for NA (Stock and ESS NA tuned) and ESS Supercharged applications. Increases shift firmness in S4/5/6 and increases launch control RPM to 3800RPM on US spec M3’s.

You will receive our USB to OBD programming interface. The end user will need a Windows laptop to remote program the SMG computer.

Application intended for: BMW E46 M3 with SMG