Hey man, in response to your Post about the H I D headlights for the Buick regal, I bought the stock headlight units from Buick and come to find out, the plug on the unit itself is different than my factory plug for the halogens. The dealer said they have to rewire the plug going to the headlight and it could be very costly. I'm going tomorrow to my dealer to see what it entails and how much it would be. I will let you know if they can do it. If you look on eBay there are some aftermarket headlights for the regal which are pretty nice looking.