My stock 235 aren't cutting it anymore, thinking about at 275 or 285. Any suggestions. I live in Florida so cold really isn't a factor. Thanks!

 

I've been running nitto nt555s 275/40-18 on my stock 18s. Been fine for me. Gonna switch to the sumitomos to save some money next time.

 

I was very happy with my Nitto 555's, Sumitomo HTZ slightly less so, but the Michelin Super Sports at 275-35-18 on 2009 GT500 rims have been just amazing tires. I have to really try to get any noise from this tire, its been phenomenal in dry and better than expected in rain, no surprises.

 

Take a look at this thread

https://themustangsource.com/f657/mu...sticky-517216/