Both of my sisters/brother-in-laws own Subarus. The cars are: 2006 Outback 2.5 XT 2006 Impreza WRX Both cars do not come with HIDs, but rather come with halogen projectors. The halogen projectors perform well, however my brother-in-law with the WRX expressed interest in having HIDs installed in his car. So I ask you this, is this a matter of simply buying the HID bulbs and a pair of ballasts and performing the installation that way? This should run 2-3 hundred dollars, correct? I'm hoping that the stock projectors will suffice so that way they don't have to buy new projectors or anything. Thanks.