i am because they make the car handel better than spings, (ive driven a Celica with the Eibach sportlines, Tiens, and TRD
). Some one told me that the Skunk2s and GCs were better for performance. Also it was good that i was able to raise of lower my car when ever i wanted to. ...OK now to the cons...like anyother coilovers and sleve type coilovers they are bouncy. If you do get them your gonna have to replace your stock shocks with some performance shocks that with be able to handel the Skunk2s higher spring rates. I heard that Koni Yellows were the best and that if you wanted to lower more than 1.5 inches you would have to get them customized from a shop. Ive been running on Tokico Blues for a while already and havent had a problem at all. But all together im really happy with them..ive had them for almost 2 1/2 years or so and they been good. SO if you want to sacrifice some comfort for performace then by all means.