Progress Tech 94-01 Acura Integra/96-00 Civic/Si Coil-Over 2 System (FR 450lb/RR 350lb) Fac. Top HatProgress Tech CS2 Coil over systems are non adjustable dampers manufactured to our specifications. These twin tube low pressure gas systems are available in a wide range of spring rates tuned for daily drivers, street performance and your perfect weekend warrior drag or track day ride. If you're on a tight budget and you're looking for a great system for an unbeatable value, a CS2 kit is just the ticket. With no fancy knobs or big bling, This Part