2005 WRX headlights weren't bad at all in my experience. You probably have oxidation/haze on your headlights?
There is irrefutable evidence in this thread alone to sway people away from PnP HID kits. The glare is one problem, the spread of light is another problem, and the fire hazard is another problem.
In conclusion, if you have a PnP kit, go f*** yourself into a tree.