2008-2013 Cadillac CTS General Discussion Discussion, 2008+ HID Question in Cadillac CTS Second Generation Forum - 2008-2013; Post picture of your cars headlight.
If your car did not come stock with HID lights then don't bother buying ...
Sorry i havent been on much. I just want to say Thanks to the two members who PM'ed me about this. Your ideas are basically the same. I will exchange with a 6000K d1s bulb and see if it works. I was under the impression if you change the bulb temp then you have to get a new ballist.
Thanks again guys. I like the fact that people actually help members on this site!
Long story short, I changed my ugly 4000k headlights ( yellow ) to 6000K (white/Blue ) and they look amazing. It took me about 2 hours to get bumper off and figure how to get the bulb out. Now I know how to do it if it happens I need to change it again!! FYI, bulbs are 30.00 on ebay and come with lifetime warranty.