The 17 x 9 with 45mm offset would move the outside edge of the wheel outboard about 3/16" compared the stock 17 x 9.5 56mm offset Corvette wheels. This would work fine on the back as I used a 3/16" spacer on the rear of mine. On the front I would want to try a wheel stock wheel with a 3/16" spacer to see how they would clear. Mine clear, but just barely with 275 tires in front. Probably would be ok with 245 or 255 front tires, but sometimes you just won't know until you try it.
Brian