Hello all, ive had a body shop put a GXP Front End on my 07 G6 GT convertilbe. Was this made to fit??? They said they had to fabricate a piece and the Grills are loose and attached to the front end with little plastic ties. It looks fine until further inspection. Has me worried if i hit snow my front end is gone. How are the grills supposed to attach? and is a GXP front end supposed to fit a GT??