Tein VSS80-CUSS1 Flex Z Coilover Kit for Subaru Impreza WRX Front - Ride Height Adjustment: -40mm, -35mm and -30mm/Spring Rate: 6 kg/mm (336 lbs./in) Rear - Ride Height Adjustment: -35mm and -30mm/Spring Rate: 5 kg/mm (280 lbs./in) 16-level Linear Damping Force Adjustment System Ride height adjustable shock absorber Highly-Rigid Bracket & Shell Case