just get Hella H4 conversions. you can get them at summit racing... they are the best hands down. there are tons of H4 conversions out there and most if not all are crap. most have plastic housings some the light distribution is horrible ie: Tri-Bar lights HORRIBLE light distribution!! if your go with HIDd stay away from anything above 5k. your just losing more light. personally i would just go with a standard H4 and if you wan a whiter look then the typical yellowish look that our cars have then get a PIAA super white. You cannot go wrong with them or the Hellas!