I personally bought the Boss grille for my 13' GT, but I kinda like the CS on yours, it looks nice with the black paint and stripes.
13' Mustang GT 5.0L Grabber Blue 401a, 6spd manual, Brembo brake pkg with Boss radiator, engine oil cooler, Torsen differential & 3.73 gears. Back up camera with Navigation.
Mods - Flowmaster Outlaw, Roush front, side, rear splitter. Roush hood scoop + quarter window louvers, Barton 2 piece shifter bracket