The Progress Technology CS3 coilover kit for 1989–1991 Honda Civic, Si and CRX is a height-adjustable suspension system pairing 350 lb/in front and 550 lb/in rear springs with rebound-adjustable damping and using factory top hats. CS3 offers fourteen spring-rate combinations so you can choose a stiffer track or drag configuration or a smoother daily ride; ride height adjusts 1–3 inches and rebound tuning helps dial in handling and comfort.
Progress Tech 89-91 Honda Civic/Si/CRX Coil-Over 3 System (FR 350lb / RR 550lb) Factory Top Hat Only