Recently purchased a 2001 I30, non touring, and the first thing i need to address is upgrading to HID headlights. Im a little confused about ordering/purchasing the right bulb. Can anyone tell me what size low beam bulb I need???

Is that something that you really want to do? I have a 2000 i30 t, and the lights look nice and all, but to replace them are really expensive, even used. It's been pretty difficult to find. I'm trying to downgrade if possible.