Grille

Oh man, that is sort of a can of worms. You can get it at any number of places, and not only that, but there are several different variations on that theme that you might want to consider.

1)Moss Mustang Store - Parts and Accessories for your Ford Mustang

2)Mustang CDC Billet Grille

3)Mustang Upper Grille Insert

4)Mustang Shelby Billet Grille Assembly

#3 is the part your after specifically, but you'll probably want to get it in the kit, #4, for an easier install and better final appearance. #3 installs on top of your current grill, so you have to drill some holes into it. Compared to #4 which simply snaps in like it was from the factory. I also included #1 and #2 because those are some grills with a similar look by other manufactures that you might want to consider.