The Progress Tech CS2 coil-over system for 1989–1991 Honda Civic, Si and CRX applications is a non-adjustable twin-tube low-pressure gas kit tailored for street and light track use. It mounts with factory top hats and pairs a 350 lb/in front spring with a 250 lb/in rear, offering a 1"–3" lowering range to improve chassis balance and cornering without adjustable damping controls.
Progress Tech 89-91 Honda Civic/Si/CRX Coil-Over 2 System (FR 350lb / RR 250lb) Factory Top Hat Only