So far these are the upgrades done on the Raptor since I bought;
Morimoto Bi-Xenon HID Kit with harness
Morimoto DRL LED's
Morimoto Interior Light Bulb upgraded to LED's
Replaced the Radio Antenna for a short one
K/N Filter into the OEM Box
DEE ZEE EZ Down Tailgate Assist Strut System, I really likes that very much
Ford Custom Accessories Trailer Hitch Ball Mount
So far I have put around 1,000 miles since I bought it. I really like the truck very much. The next upgrade would be a rearview camera since mine doesn't come with one. On the DRL's install, I used for DIY write-up from here for the Auxiliary 4 pack switch on the console. That made the install very easy. Thanks FordRaptorForum.com.