It could go either way depending on the wheel I think my first thought was "Awe man it's a 21" wheel."
no pics...he's going to call me later with price and "actual" availability. He did mention that there was a Viper at SEMA with these tires on it.....some one do some detective work and fined pictures
specs are;
375/20ZR21 XL 103Y RIM Width is 13-13.5 SECTION WIDTH IS 14.4 (345/25ZR20 sw is 13.4) OD 26.9
they have a few choices on the front tires,...275/30ZR19, 275/30zr20
and 285/25ZR20