Thanks for chiming in Chad. I've never seen those before. Looks like "those guys" also red-tinted the clear back-up window too on those tails. Having two halos wired into the brake circuit would seem to work very good for increasing the visibility of those 07-08 lights since only the top afterburner is actually utilized from the factory with the bottom being the reverse light and a red reflector. Very neat.
the truck you see is actually an 06, which has the smooth style tails. The 07/08's had the afterburners. What they actually did was install the afterburners, and wire in a separate set of reverse lights near the bumper, since the wiring was different. Not sure what they did to get rid of the clear lens, but yes, they did do something, probably color tinted it.