with 18's you can safely run a 225/40 tire, that's what i run and i don't think you can go much bigger if any at all.

~Alex


~Alex Ex- SVT Driver627 MUST SELL!!!LOCAL: Pre-98 MOLDED trunk Polk db speakers Corolla parts LED Underbody Kit PM 2000 Green CSVT gone on 2/17/06 2001 Toyota Corolla (SHE RUNS!!!) 1989 Mustang LX 5.0