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G21 3-Series Touring (330i
6 GSXi (1993-1996) are precision-built in-house
290 mm x 233 mm x 115 mm / 11
They are perfect for fast road or motorsport applications
6 SX are precision-built in-house
BC RACING COILOVERS ER SERIES - BMW 3 SERIES E90 05-11 (TRUE REAR COILOVER) Spring Rates:RECOMMENDED KIT 5.5/6 KG.MM G21 3-Series Touring (330iThe 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