mine are 19x8 and they fit just fine, so you can go with an 8 incher, hehe. but i think any wider and i would be hitting the upper control arms in the rear. rim width doesnt affect how far they are in or out of the fenders, thats all relative to the rims offset. get the right offset and you will be fine. with a 2" drop you will rub in the back but all you have to do is roll the fenders. i had my front lowered 5 inches on the 19s and it rubbed, but i took it back to only 4" drop and its fine, so you dont have to worry about a thing in front

http://www.geocities.com/blue2gnt

1995 Eclipse GS - HRC Stage 2 - Retired.
2004 350z Enthusiast / 2008 Nissan Versa SL