I have kumho 712's on my 15s. They only cost me $60 a pop. They have really good wet and dry traction. Not a good winter tire though (if that applies where you live). I autocrossed on them once for kicks in STS (in H-stock I used to race on victoracers) they were actually surprisingly good, for a pure street tire. Tread life should be decent if you don't tear them up like I do. When they wear out I'm gonna try Falken Azenis..... that is, if BFG doesn't get off their frickin pedistal and sell the KD's at a reasonable price.