i did it in my car, its kinda nice. not a hugggge difference but noticeable. not like i have oncoming cars flick their lights at me or anything.

so anyway, what i did was sourced a couple of 9005 sockets with ~6" of wire and soldered the wires into the 9006 wires. then i got some heat shrink wire loom shit and covered it all up to keep it clean and dry.