siverstars are about $50 a pair from a auto parts store. you can get them on ebay for about $35 a pr. they are brighter than cool blues and are cheaper and last longer than piaas. (well piaas have so many diff. colors and watt. but comparing apples to apples that is). to use 9005 for lows use simpley remove the plastic piece from inside the bulb socket thing. i used a dremel. i cant remember if 9005 have 2 plastic prongs or 1. but if 9005 have 2 than 9006 have 1 or vice versa. DONT REMOVE THE METAL PRONGS FROM THE BULB BASE. just the plastic piece.