No...re-read your own thought process. The 06 has a H7 bulb for low beams. So, why would you buy a 9005 kit? You'd buy a H7 hid kit. The stock projectors on a wrx are halogen projectors, not HID like the STI. So, you can't just slap D2S' in there and expect them to work. Let alone, the stock setup for the STI has a built in ballast and the correct voltage/amps to run the HIDs. The wrx won't have the correct setup to run HIDs with out the kit. BTW, the 9005 is for the highbeams on either car. You'd want a H7 hid kit, seeing as that is what you use the most. Expect it to be brighter, but to have significant glare compared to a HID projector set-up. SharpHID (a vender on this site) and other places have the kits. Just be aware that you may or may not need the battery harness for your conversion kit. My 06 didn't need it, but other people had to use it so that their HIDs work correctly.