For what car? On my old sharkeyes for my '95 they had round covers that you twised off to get to the bulbs. The only thing you can hope for is a higher wattage H3, most likely. H3's aren't that bright as it is and if you go nuts on the bulb wattage you're likely to fry your stock wiring.

I hated the output on my projections and went back to stock. They look better anyway.