997.1 C2S on 305/30 tyre
i have 305 on 12" GT3 wheels, no issue what so ever, car is lowered with Eibach, fronts are 245. IMO this combo exceed 295/235 setup, and far superior than 20" setup which i about to ditch come new year. The 20" setup is great for look & slow cruising but doesn't fits my driving style.




