I just put some diamond clear corners on mine, and they made the headlights look a little yellow. I tried the sandpaper thing, waste of time. get some rubbing compound from an auto parts store. Depending on how bad they are, that should work. I used 3m body repair rubbing compound, fine cut. It says that it is safe for use on clear coat finishes. And should cost around 5 bucks, but it will last a long time. Just try it on a small part first, and if it works, it might take a couple of applications. Mine weren't too bad. you can get some rougher rubbing compound, but I would try the 3m stuff first, you don't want to leave scratches, and that stuff I just told you about removes 1500 grit sandpaper marks. A buffing wheel and drill might speed things up. I got mine at sears(buffing wheel kit) 10 bucks. good luck pm me if you have any questions. chris