BC Racing HM Series Coilovers for 1992-1999 BMW M3 True Rear RWDBC Racing HM Series Coilovers for the 1992 1999 BMW M3 True Rear combine the inverted damper durability of the RM Series with the independent compression and rebound tuning of the ER Series BC's pick for track day McPherson strut builds. Every kit is extensively tested on the M3 True Rear chassis and refined until it balances ride quality with performance the reason M3 True Rear coilovers from BC Racing are the best selling adjustable kits in their