CTS CKS/Swift Coilover System by RP USA (3rd Gen CTS)

Refined Performance USA's CKS Coilovers are built using only the highest grade materials. The upper mounts, lower mounts and spring perch are made out of 6061 T6 aluminum, and rely on custom progressive CKS Refined Performance USA designed springs or circuit dedicated Swift Springs with SCM440 hardened piston rods.  Our quality components gives you a smooth yet solid feeling ride, no matter if you're driving through city pot holes, or racing on a track at 120+ mph.  CKS coilovers are the most reliable, safest, and highest performing coilovers on the market. Refined Performance USA has a great working relationship with CKS and worked closely with them to build the ALPHA Platform kits. (Zeta chassis kits are available by special order.) Refined Performance USA CKS Kits are adjustable in three different setups: Street, Street/Track and Full Race. This allows you to pick how aggressive you want your coiler valving. They also offer 24 way dampening adjustability with a 9kg spring rate on