Here is the catch. All 4 units are BLOWN. However, Tanabe offers rebuild. I am not sure of the cost. It comes with 8kg/6kg spring rates and it also has helper springs. Includes front pillowball upper mounts and rear comes with 04 WRX mounts. More info can be found here : http://www.tanabe-usa.com/coilovers/s-oc.asp Instead trashing it, I'm just trying to see if I can sell it. :P If the rebuild cost is about 100 per corner, like TEINs, you can have decent basic coilovers for about 500 bucks. These are very comparable to TEIN Basics. PM me if interested.