I did this mod for my Mom's '09 Impreza a year ago and one of the modded bulbs just recently went out. No melted wires or anything else that I saw when I replaced it. Beware high wattage H9s though. I've seen blue bulbs that say 60 watts on packaging but read 100 watts on the bulb. I used Osram H9s but nodody carries them locally anymore but the generic ones I got from Ebay don't seem much, if any dimmer.