I also swapped the MCA lower for the Roush lower grille. It goes a lot better with the CDC Performance grille than the stock Ford grilles.
With the MCA billet lower grille
And this is a GT that CDC had at Mustang Alley in August 2012 with the stock egg crate lower grille. (My car was selected that year for the make over and done at Mustang Alley by CDC)