BC Racing ZX Series Coilovers for 1992-1999 BMW 3 Series E36 True Rear Coilover RWD (On-Center)BC Racing ZX Series Coilovers for the 1992 1999 BMW 3 Series E36 True Rear Coilover bring the same three axis adjustability as the race spec ZR Series with valving tuned for drivers who split time between street and track. 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 Racing are the best selling