Murdered07

I was going to get a rear rim and tire setup over winter and was wondering about the offset, I was going to get a 17x9.5 rim and a 305/45/17 Tire and the stock offset for a c6 is 79 I belive and the offset on this 17 inch is only 56, will I be rubbing with such a different offset? I do have a z51 if that helps