If you are considering tail lights I wouldn't go anywhere other than meter4it.com
https://www.youtube.com/watch?v=SKM2aFfTT7A&feature=youtube_gdata_player
I purchased these about 3 or 4 years ago and love them. They also have the option to do what you see in my video, link above, or you can change them to stock and also what you see on the new Mustangs with a flip of a switch.
waaaaaaaaaaaay too fast