CTScott go to
www.powerbulbs.com and order either Osram Nightbreakers H4's or Philips X Treme H4's, and you will crap your pants compared to the stock bulbs and even the U.S. Sylvania Silverstar bulbs. The US versions use Halogen gas and tint the lens of the bulb to get the white color. The ones from Power Bulbs are filled with Xenon gas and most of the times never tint the glass. They are extremely bright and very very white compared to stock and US versions.
I am currently using the Philips X treme and love them. The Osram Nightbreakers didnt last very long for me and the Philips are as bright but are rated for a longer life.