BC RACING COILOVERS ER SERIES - BMW 3 SERIES E90 05-11 (TRUE REAR COILOVER) Model-330i E90/91/92/93 N53 Software changes to allow for

Software changes to allow for catalytic converter removal

and develop bespoke calibrations directly in-house — giving us complete control over the tuning process from start to finish

and listening to customers feedback we’ve found that our Alfa N tuning can be just as smooth and drivable every day when compared to MAP based tuning

and see track use

BC RACING COILOVERS ER SERIES - BMW 3 SERIES E90 05-11 (TRUE REAR COILOVER) Model-330i E90/91/92/93 N53 Software changes to allow forThe 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