I currently have the STI headlights and I am getting annoyed by the orange bulb in there....I am thinking of replacing them with philips silvervisions (when off they are silver, when on, they blink orange) ..do you know if they fit? and any US sources for these bulbs?

thanks

One source for these bulbs is powerbulbs.com. They are English web site but a very good company. Very fast.
Well they fit the morette flasher and the rear stock flashers. I would pull out the old bulb , read the type , and then check it against that web site.