I want to change mine and I was looking into PIAA's Extreme whites. I heard they are nice but what other bulbs can I use? I want a bulb that is BRIGHT! a little blue looking not purple like the 8k HID's. Thank You.

 

I recently replaced my bulb with a Sylvania Silverstar of the same type, that is, H4 bulb. The differences I note are a wider and farther projection and a whitish light rather than yellow.

It does exactly what I wanted for myself, however it's downfall is that during city driving it's white light blends perfectly with every other light. But on a road with little or no illumination the result is phenomenal and it reflects better by far.

cost was $20 at Autozone.