HID lights? / LED tail lights

I don't want to sound like a hater, but please for the love of God don't use the crappy HID conversion kits. The reflectors were designed specifically for the light output pattern of a filament, not an arc. Using the conversion kits throws lots of light places it was never intended to go and will dazzle other drivers. If you want good HID's look for ones that were designed from the outset to be HID, one that comes to mind is the Valeo Sylvania Xe7 and Xe7R (there used to be the XenArc also, but I think they stopped making that one). The Xe7 is a projector style designed to fit into original 7 inch round holes, and the Xe7R is a reflector style that would look pretty stock. The only downside is that you'll have to modify the retaining cage and the bucket to fit, and they cost $890 for the pair.