need new tires
Get a set of Kumho Ecsta MX in size 205/50-15. You will be very happy. Just make sure you get the Ecsta MX and not the Ecsta 712.
http://www.tirerack.com/tires/tires....Model=Ecsta+MX
http://www.tirerack.com/tires/tires....Model=Ecsta+MX
I have a set of Falken Ziex 512's on my steelies and they do just fine for daily driving. Another decent set would be the AVS ES 100's by Yok. They're not the best on the track or anything, but I think it'll suffice on the streets...
I'm running Yoko A520's (215/40/17). They grip pretty well for "casual" autocross but have some annoying characteristics such as: 1. becoming noticeably louder as the tread wears down and 2. feeling vague at freeway speeds.
Shingo
Shingo


