rtilbury

I am very interested in getting a set of Works CR Kai, and would like to stick with 17". I am hoping to use my current tires, as they have only a few hundred miles on them.

My tire specs are
215/45 Front
255/40 Rear

I am lowered about an inch on Koni Yellows and Eibach Pro springs.

What size and offset could I run without rubbing. I do not want to roll my fenders or do any modifications.

I love the concave rears, but obviously would have to do some rolling to even fit them.

Thanks for the help