This. Its why people do it. It causes no more glare than a factory projector and you end up with the performance of a factory projector. Its a win/win.
Not only that, but a PROPERLY retrofitted HID PROJECTOR isn't illegal. Installing HID's into normal Halogen REFLECTOR housings is.
And it depends on locale weather or not the aforementioned is even illegal. You can say it's not DOT Certified till you're blue in the face, but in true reality only the OEM is required to follow those rules, and as such the aftermarket isn't required to follow these rules. Some places have laws in place to regulate vehicle modifications, but properly installed HID Projectors surpass any and all "Local law" requirements. Otherwise they wouldn't be installed on High end vehicles now would they?
Just because it doesn't meet DOT Specifications doesn't mean that it is
actually illegal. There must a law in place in order for it to be illegal, and some locales don't even have specific lighting requirements such as a specific focus and output limit. Otherwise projectors are normally exempt from the output limits so long as they pass color temperature (although some places the law is vague..) but they must maintain a sharp cutoff as to not blind oncoming traffic in the Low Beam setting.
Properly installed Projectors designed for HID usage installed in place of a Halogen reflector is NOT illegal so long as they do not cause excessive glare to oncoming traffic. Proper HID projectors will pass the DOT regulations as they prevent the glare that determines a pass or fail.
Wanna know what SHOULD be Illegal? These Depo housings that can't even pass the OEM DOT Specs that are sold everywhere. Their lighting pattern causes excessive glare, scatters the light resulting in a poor lighting pattern and are direct OEM replacements. :angry: