STG 1 to STG 2 Handset Software Upgrade Model-E90/E92 M3 Performance Brake Discs – High-quality

Performance Brake Discs – High-quality uprated discs for improved bite and heat dissipation

How it works:

suspension

62 final drive in both ECU and gearbox TCU for seemless opertaion

STG 2 Power increased to 420BHP and 580Nm

STG 1 to STG 2 Handset Software Upgrade Model-E90/E92 M3 Performance Brake Discs – High-qualityUpgrade your handset from STG1 to STG2 tuning. There's no need to pay full price again to upgrade your STG1 software to STG2 software, we will upgrade your software, including appropriate software changes for additional hardware such as Sports Cats, Upgraded Full Exhaust system, Full Intake System and redo any tuning feature options you may want to change, such as: Flat Foot Shifting No Lift Shifting Hard RPM Limit (Cutting Ignition, instead of fuel)