Ordered the silverstar h4 st headlight bulb, very easy install. Still dont know if its all that much brighter, hard to compare considering i've only had the bike 1 week. I am hoping it will look kool when my rainbow strobe comes in. I also ordered the fiamm horn as an afterthought, 9 dollars. Not only is it waaay better sounding than stock, I was able to trash the cheesy bracket that came stock. The horn will bolt right to the downtube next to the gear shift. There is 3 holes available , I went with the top one. It naturally points the horn forward too.