Hey Retrosolutions.com sells hid kits including halo projectors. I have a set of the 55w digital hids in my car (not the projectors) and they work really well. Plug and play installation. $300-$350 for the ones you want. Hope that helps
All g6's have the same headlights. So projector headlights will all be the same.
For HID's lows H11 Fog H9
I can imagine how bright those 55w are i have 35w and get people flashing there brights every once in awhile. And i have mine aimed pretty low IMO.