Lower it, tint the windows, good set of wheels/tires, maybe a little cleanup on the nose of the car like the Saleen grille and a CDC lip or a GT/CS lip and that's it. Put the rest of the $$$ into mods to make it faster. I dunno about everyone else here but I'd rather have a really clean stockish looking GT that runs 11s than some "flashy" car that runs stock 1/4 times.
2000 Mustang GT Steeda #0048
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.