Here they all are... K1-Street for the daily wanting to give the car a solid sporty feel. These will handle rough roads and the harsh ride of a daily driven car sees. It does it while giving you a comfortable and very positive feeling ride. K2-Circuit for the aggressive track/weekend warrior. These come with upgraded internals and more aggressive valving. They also feature custom Swift Springs. If you're getting serious about racing this is a great setup that offers preset rebound to keep it simple to setup. K2-Pro Circuit 2Way for the all out race car looking to stand on the podium and set records. 2 Way adjustability allows you to set compression and rebound to compliment the track and your driving style. This is for those who want to spend the extra time to get everything out of their setup and really get that car dialed in. We also provide your choice of Swift Springs from 12K-22K to further the options of setting up a coilover to fit your needs.