twinturboz300 wrote:Sorry! My bad I didn't mean -20 offset it was just supposed to be a dash, but thanks for your info I don't know if it's worth rolling my fenders
No worries, I figured you meant +20, just clarifying.
Fender rolling isn't a big deal. I tried doing my own with the Eastwood hand crimper, and I feel like a f*** idiot. It's a finisher, not a total crimper, and I mangled my fenders. That's what I get for being cheap :/ Brought the car to a shop and had them do both rears for $150 I think. Perfect roll.
10.5" wide you should be looking at 275 minimum, IMHO. 295 would be optimal, but if you're going for the deep dish look, I get it and that's your prerogative. Below is a side shot of a 10" wide 18" wheel +40mm with a 285/30.
Full size image link, click to zoom in the upper right corner
No rubbing whatsoever, and it sits flush, IMHO.