1. You will be fine, I ran that size on my car for a bit with no scrubbing issues and my car is lowered a lot.
2. If you're looking for a Nitto that provides good traction I would look into the NT05s before looking at the 555s
Sold - Black 2000 Mustang GT, gone but definitely not forgotten
- Silver 2007 Corvette
Current - DHG 2001 Bullitt