I think the SVT wheels are 16x6.5, and they fit any 'tour fine, but so do 16x7.0, like I have. I don't think you can go wider than that w/o problems, but a 215 on a 7" should be good. I think 225s can cause problems, IIRC. 'Rolling' the fender may fix wheel rub if it's the tabs under the wheel well rubbing.

-Philip Maynard '95 Contour [71 STS | Track Whore] '97 Miata [71 ES | Boulevard Pimp] 2006 autocross results