3M makes a plastic polish and a plastic cleaner, I think Napa also has something like it also. If you polish your headlights with it you can gain about half the light back. I believe by adding a ground at each headlight on my daughters is what made it get brighter. I had bought the real bright bulbs from JCWhittney and installed them, that is what melted my daughters plugs. You can add a ground wire without replaceing the plugs, just cut off the insulation and solder an extra wire to the ground wire and put an eyelet on it and bolt it to a clean (NO PAINT) spot of metal right at the headlight - if not sure which wire is ground, turn on lights and back prob three wire socket. One will be hot with low beam and one will have power with high beam - the one with no power is the ground. Good luck and happy New Year Mike OB