17's under stock fenders

[NYBugman1972]

I don't know for 7.5" wheels. Then again, I am assuming you have the Mille Miglia 17x7.5 replicas, which has a 52mm offset. Those are the same wheels as the Topline car. So, I suggest calling them and asking. Or someone who knows more on this particular setup will chime in.

Personally, I have a genuine porsche 17x7" wheel et55 and I run a 3/8" spacer.

Again, you may or may not need a spacer for your personal application.