I have a 2003 Track Model Z. I just picked up a set of wheels, 18 x 9.5 all around. They came with tires on them already, but I want to get bigger tires for the rear. It has Nitto 555 245/40/18 on all 4 right now. Whats the largest tire I can run without screwing up my vdc? Thanks in advance! Btw- I think the offset is -33. I am not afriad to roll the fenders if I have to, and the car is dropped on Hotchkis suspension.

 

on toyo.com they say 275 is recommended, it also says 285 will fit but up to you how much u want to push a tire onto a rim.
good luck!