Falken Azenis 225/45/17
Excellent tire.
Pro's:
Excellent grip
very stiff sidewall (sidenote: I had a flat tire and the rim was still about an inch off of the ground. I could still drive on it to get home)
Universal autocross tire (everyone has them....yes everyone)
Cheap ($117 at discount tire, cheaper if you look around)
performs well in the rain (only hydroplaned in a hurricane)
Con's:
200 Treadwear rating (I didn't mind as it was a cheaper tire)
Somewhat noisy (not a problem for me)