This has been asked over and over in this forum, but I am looking for recommendations as to what I should try running in my car for a suspension. I have been doing lots of reading on this forum and I'm still not so sure, so I might as well ask people with more experience than myself.

My Evo 8 is currently stock in power running the stock wheels on 235/45/17 Sumitomo HTR Z II's, KYB struts and the Eibach Pro springs. The car is not my DD and I currently use it mostly for fun drives on the weekend. However, I would like to start to tracking the car maybe 25% of the time it is driven. I don't think that would necessitate jumping to a coil over setup, but should I change the KYB's to Bilsteins and should I look at other spring options at the same time?