My rims are not stock, but they are wider. Here are the details.

Rims: TSW

18x8.0 Nogaro Silver 5x112 Bolt pattern 32mm offset. - Front
19x9.5 Nogaro Silver 5x112 Bolt pattern 35mm offset. - Rear

Tires: Yokohama

Advan 245/35R18 - Front
Advan 295/30R19 - Rear

Now, that being said, I think you might be able to get a 10 inch wide rim in the back, but you'd better order just one and check it first. Also, I had to add a 4mm spacer in the rear to keep the tire from scrubbing the inner fender wall at full upward articulation.

Good luck!