I read the FAQ and it seemed to be quite detailed on various headlight bulbs you can get. However, how do they stack up against each other? Does the cost difference match the visibility difference? $15 vs. $55 seems quite significant a difference!

I really like the look of HID in the Audi A4/A6 that you see on the road. Does Sylvania, PIAA, and Narva all have that same look except for brightness variations?

~Gary

 

I think only PIAA Plasma Blue, Super Plasma Blue, and SuperWhites give that purple HID look. Super Plasma Blue has the highest color temperature of the three.

 

Thanks - which ones can you go with using the existing wiring harness and regulator? I don't want to replace more than just the bulb...