I read a very informative article written by an engineer that basically said the concept of a conversion kit to HID was wrong. To oversimplify it,he stated that the reflective surfaces in our stock light housings were not in proper alignment with the filament of an HID bulb. So even though there are many kits that fit, the concept will not work as intended. Having had one of these kits( dealer installed prior to my purchase) I thought it would be better, but it just annoyed oncoming traffic. Visability was no better than a good halogen.