On 18x9's, for a 38 mm offset rim, what would be the widest tire I could fit on the rear for a stock suspension set up. Thanks

 

265/35 18 should fit but will be very close, it's possible one of the "wider" tire brands MAY hit the fender lip, depending on camber settings. 255/35 18 should definitely fit with no problems.

 

Thanks for the help! Not sure what I'm going to do yet, but 265's in the rear would be nice. I just wish I knew for sure if they would fit. Don't want to guess. So if anyone has a setup like this, I would appreciate some helpful info. Thanks

 

Here's a pic of my setup:
rpm2
yokohama avs es100's
18x8 45 235/40/18
18x9 38 275/35/18
tein flex lowered 342mm (wheel center--fender)

http://members.***.net/namasan/7/rear.jpg

No rubbing on the street, haven't had a chance to test it out on the track yet though.