18x7.5 45 offset fit on a max or it needs to be 35-40?

They fit...but the rear tires will be pretty far inside the fenderwell...nothing some spacers cant fix.

thx I thought a 45offset would rub

Check out my sig pic. These are 18" Konig Monsoons w/ a 45 offset and you really cant tell that they are in a bit. I looked into wheel spacers and the H&R are the ones to go with. But i dont think that itz worth the money cuz the wheels aren't in noticably far.