BC RACING COILOVERS ER SERIES - BMW 3 SERIES E90 M3 06-13 (TRUE REAR COILOVER) Model-Focus ST MK3 2.0l Ecoboost There's no need to pay

There's no need to pay full price again to upgrade your STG1 software to STG1+ software

Torque Limiters are upped to 1000 Nm (737 ft

This Package consists of everything that is required to flash and log your car from home with our own fully custom TRS tuning for B58 engines alowing you to get the most out of your car unlike generic OTS Tuning

Variable Overrun Duration (in seconds)

Each HM kit features inverted monotube dampers with separate compression and rebound control

BC RACING COILOVERS ER SERIES - BMW 3 SERIES E90 M3 06-13 (TRUE REAR COILOVER) Model-Focus ST MK3 2.0l Ecoboost There's no need to payThe BC Racing ER Series is a high performance coilover system featuring external reservoirs and completely separate compression and rebound damping adjustment. It builds on the proven quality of the BR and DS Series but adds far greater tuning control, making the ER Series ideal for drivers who want more precise handling balance on fast road cars and track focused builds. Key Features Digressive piston and damping curve External reservoirs with 30