I personally noticed a huge difference between the ride of cheaper (ksport ect) coilovers and my jic's. I'd reccommend forking out the bit extra a buying a decent brand especially if it's going to be for track use. For the money your talking you could get a nice set off of yahoo auctions Japan. I personally bought mine from a shop here but you can get cheaper by finding them yourself ad using Jesse streeter to get them to you