i brought those ones, seem fine to me, but then i dont use it on the track at all! i think to be honest it is all a matter of opinion, a mate of mine has a 500 bhp cossie which is often on the track and he has had no end of coilovers ( koni spax etc etc) hes now running jamex coils with ledar springs and says its the best cobo so far. imop shox are shox but spend a little more on the springs if you intend to take it round the track.