We've all seen them, whether they're going down the road on the way to work, or sitting next door in your neighbor's driveway--those cloudy, discolored, and yellowed plastic headlight assemblies. It's not just a Ford thing, as we've seen all manners of domestic and import vehicles with less-than-usable headlamps. But Fords are all we care about here, and it seems that the '99-'04 Mustang is more prone to this headlamp issue than most (though the '87-'93 Fox cars come a close second).
Sure, you can try a headlamp cleaning kit--they do work to some extent--but once the surface has started to fail, the discoloration usually continues to come back, just like a faded and dull paint job being buffed out time and time again. Luckily, the headlights are installed with simple friction clips, allowing an easy 10-minute driveway installation that's just about tool free. (I guess it depends upon how much grip you have in your fingertips.)
Our neighbor's daughter uses an '01 V-6 for daily driving duties, has taken very good care of the car, and she really enjoys driving it. We felt she had earned herself a new set of headlights for being such a good driver and taking care of her ride. Of course, we couldn't put stock lights in her Mustang; then we'd have to remove the "Modified" from our magazine name. So an e-mail later, a set of these nice, smoked headlights from American Muscle was on the way. Don't worry, though, American Muscle has stock replacement-style lights if that's what you want, as well as some wilder options with extra driving lights and accents.