I was getting ready to do this today and my roommate told me it would burn out the fog lights faster. I didnt think it would. He is one of the guys that like to keep everything oem. He doesnt see why i want to do it. I told him to see better with the HI's on and i dont like it when the fog lights go off when u put the HI's on. so if any one can tell me if it burns the bulbs out faster and if it really helps u see better at night with the HI's on. thanks guys