[Goingnowherefast]

I think it really depends on how far you want to take it. In my opinion, the number one thing these cars desperately need for the track is front camber. I would recommend grabbing a set of front crash bolts and literally max them out.

As far as the wheel/tire combination, obviously a 245/255 on a 17x9 wheel will be much faster than a 225 on a 17x8 inch wheel. Personally, I opt for 200TW tires on even my DD (I still take it to events and instruct in it sometimes) over a high performance summer. That being said, the Pilot Sport 4S and the Conti ExtremeContact are pretty great options that can cope with *light* track use while being great DD tires (in the wet too). There's tons of great 200TW's out there now. RS4 and RT660 make for some awesome endurance tires centered around HPDE and road course use. The A052, Rival S 1.5, and RE71R (now discontinued) are the top dogs when it comes to speed, but they tend to fall off during longer sessions. There's a possibility of a new RE71RS making it's way here for next season, and also the new V730 could be a good offering but it's too early to tell.

Hope that helps!