BC Racing ER-Series Coilovers (N-06-ER) 17375 utilizing advanced manufacturing processes to

utilizing advanced manufacturing processes to ensure quality

3 2003 Chevrolet Trailblazer Engine: 4

Included software designed for use on a factory engine (See notes)

Includes one (1) replacement bellows air spring

BC Racing ER-Series Coilovers (N-06-ER) 17375 utilizing advanced manufacturing processes 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