JLZ06TR

Im running C6 Z06 wheels on my C5 Z06. Im looking for a good autox tire that fit these wheels, but dont want to go to a full race compound tire. Ive been looking at the RE11, but Ive been told that the RS3 are better, but these only run up to 305 while i could get the RE11 in 325. Would the RS3 be better at 305 than the RE11 at 325? Is there another option out there that I am overlooking?

Thanks for any help