KW Variant 1 coilovers are the ideal system for performance enthusiast who wants the freedom to customize ride height while leaving damper valve rates to the experts. Through extensive field testing both on the dyno and the track, the Variant 1 engineering team has developed what is considered to be the ultimate balance between driving experience, comfort, and safety. KW Variant 1 coilovers are the best of both worlds for those looking to get into a high quality coilover system that is perfectly suited for both competition and the street. Specs: 07-09 Drop Rate (F/R): -0.8 to -2.0in / -0.8 to -2.0in 10-11 Drop Rate (F/R): -1.2 to -2.2in / -1.0 to -2.2in 07-09 Spring Rate (F/R): Prog/400lbs/in 10-11 Spring Rate (F/R): Progressive FITMENT: Mazdaspeed3 2007-2012