I was wondering what the easiest way to make the factory headlights and my clear corners and bumpers have a black housing. I have heard of using a heat gun and putting them in the oven. I was also wondering if it is a hard project? I assume it takes patients and a full weekend of your car parked in the driveway. Any comments or tips from people that henve done it before to there cars even a WRX is probably a similar process. Thanks.