Before you buy LED "bulbs", consider replacing the whole light housing if you can. There are a few reasons for this:
First and foremost, you'll get better performance, and have a sealed light assembly that should last a long time.
It'll look better, with new lenses and probably a sharper look.
LED bulbs don't have the same light output characteristics as the bulb you're replacing. The LEDs might seem brighter at certain angles, but may (likely will) fail to meet the photometric requirements in FMVSS108. At the very least, you'd need to add a separate license plate light--it's required to be a white light, with a number of requirements regarding intensity and beam pattern. Will you ever get pulled over for this? More than likely not. Could you be? Sure.
If you can, post (or send me directly) a picture of the lights you have now. I work in the lighting business, and might be able to point you in the direction of a suitable replacement.
