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6 (2003-2006) are precision-built in-house
6i RS Turbo Non-ABS (1990-1992) are precision-built in-house
Heat Treated For 36 Hours & Then Pressure Tested To 56PSI To Ensure Maximum Strength
3 Supercharged (1995-2001) are precision-built in-house
BC RACING COILOVERS ER SERIES - BMW 3 SERIES F31 (12-19) RWD/AWD 5-BOLT TOP MOUNT model-INFINITI G37 09-15 (CONVERTIBLE) 6 (2003-2006) are precision-built in-houseThe 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