I've been pretty happy with my Nitto NT-450's. Mine are also 215/45ZR-17, and the price is comparable to the Kumhos. I like the tread on the Kumhos, but something about the sidewall just didn't look right (at least on every picture I could find on the web).
I know the Nittos also come in 225 but I don't know if they'll rub or not.
I know the Nittos also come in 225 but I don't know if they'll rub or not.