i'm running 245/45/17 up front, and 275/40/17's on 17x9 cobras all around in the back. i like the slight overhang of the 275's MUCH better. one rear tire rubs VERY slightly on the inside of the fender under hard corners, the other doesn't.... car is not lowered though. i also dont like that if u ever touch a curb with the 245's, it'll chew the chit outta your rims.