Actually I believe it'll be a complete swap if you change the grille and the front bumper, the only reason why I know is because two weeks after getting my 09' V6 I got backed into and had to replace my entire front bumper, I was going to switch to a GT, and that's when they told me that I would have to swap the grille too, I didn't do it considering I wasn't the one paying for it, from the dealership the front bumper for a GT brand new and painted will cost between 7 and 8 hundred I can't remember the exact cost though. This is of course just the bumper alone so I would look at some swap yards.