BC Racing ER-Series Coilovers (G-03-ER) 1591 So when it comes to

So when it comes to keeping your engine oil temps down as you push your Vehicle hard on the street or track

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Maximized wheel travel for excellent ride characteristics over traditional coil spring lowering

remote mount air filter assembly and check valve

BC Racing ER-Series Coilovers (G-03-ER) 1591 So when it comes toOur newest and most advanced model yet is the ER series coilover. It features large external reservoirs front and rear, separate rebound and compression adjustment and a twin piston design. The external reservoirs hold much more oil than the conventional coilovers, allowing the coilover to operate for a much longer period of time before overheating. The external reservoirs also house the secondary piston, which allows for the adjustment of