BC RACING COILOVERS ER SERIES - BMW 3 SERIES E46 M3 00-06 Spring Rates:RECOMMENDED KIT 7/10 KG.MM The first dyno graph shown

The  first dyno graph shown is a standard M3 engine with CSL Airbox only

and long-term reliability

Options Available

to lift the maximum TQ capacity of the 6HP21

This is a complete with fitting kit

BC RACING COILOVERS ER SERIES - BMW 3 SERIES E46 M3 00-06 Spring Rates:RECOMMENDED KIT 7/10 KG.MM The first dyno graph shownThe 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