I'm running 225's in the back as well. I have minor fender rubbage when I turn the corner or hit a bad bump.. It's worse when I have people in the car.
There's a guy on bmwcc Ottawa that has 245's on the back, without rolling or cutting.. Don't ask me how he did cause he doesn't even know.. it's sick. If it touches abit you might just need the fender rolled a tad.. I wouldn't cut it.. You can always as Mystikal on the board about your proper profile and size..
So you going on Sunday?
1994 318is-Sold July 13th 2010.. Sad Sad Day