Viper owners have been doing this size in bigger for years. My first viper club event back in 99 a car had 11" up front and 14" in back, which btw is 1" bigger than gen 2 or srt size.
This brings up a good questions, why didn't dodge put on the larger rims and tires they were originally planning on? From everything I read it still has 10's front and 13's back.