thanks, volk.
![BigThumbUp](http://www.the370z.com/images/smilies/biggthumpup.gif)
(and i was just kidding about the 0.5" difference.
![Icon17](images/smilies/icon17.gif)
)
if you're willing to slam the ride and run lots of camber i am sure your 10.5 +0 or 11 +5 would fit. the good about the 370Z's rear arch is it's not folded inward horizontally. it's just a thicker piece of straight metal (pre-fender rolled). so you can go pretty damn aggressive on the rear with ample clearance.