BC Racing RM Series Coilovers for 2006-2010 BMW M5 RWD (E60)BC Racing RM Series Coilovers for the 2006 2010 BMW M5 (E60) are purpose built for McPherson strut cars that see serious track time, with an inverted mono tube damper engineered to outlast a hard season of lateral loads. Every kit is extensively tested on the E60 chassis and refined until it balances ride quality with performance the reason M5 coilovers from BC Racing are the best selling adjustable kits in their segment worldwide. The RM Series