I'm running Kumho ecsta 255/55/18 on my stock rims. I'm really impressed with them so far. About 2000 miles on them. The handling seems a bit better, and they are excellent in the rain. Tire guy said i should rotate them a little earlier, as the wear rating is a little worse than the stock ones. All in all a great tire for the price. 98$ each. I actually like them quite a bit more than most of the other "performance" tires I've had.