I myself am an avid fan of HIDs. I've researched it for quite some years now, and have completed a retrofit myself. The mazda6 headlights came with HID in Europe and Japan as an option, but mazda utilized the SAME headlight housing for both, just different projectors.
Mazda just made HID's optional on the 2006 cars in the United States. They were not options in the U.S. for 2003-2005, but they were available for the European and Japanese models. So to save money, Mazda utilized the same headlamp assembly, brackets, etc. for the halogen and HID models. It was just a matter of swapping the projectors.
If you get it from the factory, it comes with auto level.
Also,
The Mazda6 was designed to carry the E46 projector. The holes are already pre-drilled into the bracket / carrier.
If you purchase single xenon e46 projectors, they're pretty much a bolt-on. E46 projectors are the same one used in certain e46 chassis BMW's (hence the name).
HIDPlanet sells single xenon ECE e46 projectors by themselves and in a package. The package includes OEM hardware (Hella Ballasts, mounting boxes, philips OEM 4300k bulbs, etc.) at this link:
HIDPLANET
As far as color goes, what you SEE on the street is based on projector. The blue and purple flickering high-end cars that you see on the street all use a 4300k bulb from the factory. The color flicker is created by the PROJECTOR, not the bulb.
A picture example:
(
Taken from HIDPlanet.com)
See how the bottom part is BRIGHT white? That's the bulb color. As you move your eyes up the picture, do you notice the concentrated blue and purple at the cutoff line? THAT cutoff line is what gives the purple and blue flicker you see on BMW's, the new corvettes, TSX'es, etc. and it's based on projector optics. There are mods you can do to increase that color as well.
I hope this has helped you out some. Anything else you need, shoot me an e-mail at
[email protected] or post in the thread!
~Anthony