This is a header panel for your 1999-2004 Ford SVT Lightning. This panel is sometimes referred to as a "headlight panel" being as it holds the headlights in place behind the front grille shell. The header panel is made of fiberglass just like the original and is a direct replacement part for your truck.
I've done the majority of my aftermarket mustang parts shopping at American muscle, recently finding out about this website I'd just like to say it is a great experience to shop here, the lay out is easy and simple to navigate, and you have thousands of parts that no other website has. The shipping is very fast and all te updates are great. I will be doin much more shopping with y'all, so thanks for being so badass haha