BC Racing ER-Series Coilovers (D-107-ER) _VIA This system can be used

This system can be used with the factory skid plate

Withstands harsh high temperature operating conditions while maintaining peak performance during long trips or daily drives

FM4-HDR6 kit features ACT's most popular Heavy Duty pressure plate

and 2005-09 Chevrolet Trailblazer SS (17U-21-0050-8)

HC3-HDR4 kit features ACT's most popular Heavy Duty pressure plate

BC Racing ER-Series Coilovers (D-107-ER) _VIA This system can be usedOur 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