BC Racing ER-Series Coilovers (ZB-03-ER) _25217 5100 Series provides the most

5100 Series provides the most comprehensive range of vehicle applications

rising to the same COF range as cerametallic friction material when warmed properly

the rear exhaust alone offers a subtle upgrade while maintaining OEM valve functionality

we swapped out the front OEM suspension for our double-bellow air springs

8 1978 Pontiac Phoenix Engine: 3

BC Racing ER-Series Coilovers (ZB-03-ER) _25217 5100 Series provides the mostOur 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