As flipswitch stated, there are some simple inexpensive halogen alternatives for a nice headlight upgrade, but I would really look into a HID setup. A HID setup in projector retrofitted housings will be a great look for your car. You will be happy every time you drive at night. I can set you up with a nice projector retrofit, all parts and labor inclusive.Hey guys, I was wondering what are the headlight options I have, (aftermarket) for a 2004 impreza. I've searched and really have found nothing... any help would be appreciated!