Don't know if I am too late to help here goes anyhow. I just got wheels put on that 17x7 with a +42 offset. I went to the shop and originally ordered 215/40 Toyo Proxes 4's. My car has Eibach Sportlines and when the wheels were put on the rears looked like they were definitely going to rub. That practically level with the fender and were about a inch away since my car is lowered. After seeing that, I spoke to the installer and told him that there was no way that I was leaving and ruining perfectly new tires especially when I knew they going to rub. I even jumped into the trunk just to prove it to him. He agreed to switch them out to 205/40 Toyo Proxes 4's. They are barely making it. I mean barely. I think it really depends on the tire too. If you go to Toyo's site, they list the widths of each tire. The Proxes 4 215's are 8.9 inches wide and the 205's are 8.6 inches wide. I have to say that 8.6 is definitely the limit. If you look at the Toyo Proxes T1-S, 215's are 8.6 inches wide and the 205's are 8.2 inches wide. I would check with Yokohama and see what the width of their 215's are. You might be okay depending on it's width. Good Luck