BC Racing ZR Series Coilovers for 1992-1999 BMW 3 Series E36 True Rear Coilover RWD (On-Center)BC Racing ZR Series Coilovers for the 1992 1999 BMW 3 Series E36 True Rear Coilover deliver the deepest damping adjustability in BC Racing's lineup, with Swift Springs included standard and three axes of independent tuning for competitive track programs. Every kit is extensively tested on the 3 Series E36 True Rear Coilover chassis and refined until it balances ride quality with performance the reason 3 Series E36 True Rear Coilover coilovers from BC