I loved my silverstars. Still have them in my high beams.
My suggestion is buy the $7 sylvania bulb. It's every bit as bright (Actually a hair brighter), so the color temperature is a little lower (i.e. it's not as "white" a light as a silverstar.)
Any store selling anything automotive should have both the normal sylvania bulbsfor less than $10usd, AND the silverstars for around $20-25usd. (20 being the real street price)
Replace them both, and re-aim the housings. You'd be surprized how many people blind others, and how many simply dno't have them aimed up & out enough to get a good pattern.
You can take this another step too, put some new sylvania bulbs in your fog lights too, and do the fog light relay mod so you can turn the lights on without the low beam being on. ;)