Why upgrade to HID bulbs?
Projector headlight systems were originally designed to be used with HID's. Instead of offering HID's in the 2014 trucks, GM opted to go the cheap route and use halogen bulbs instead. The result is headlights many of us consider inadequate, at best. Installing HID bulbs helps to partially correct what many see as a significant design flaw. HID bulbs are not perfect (primarily because of GM's use of inferior lenses and reflectors in the stock projectors) but are a substantial improvement over the stock halogen bulbs.
What is a projector retrofit?
A projector retrofit is the process of installing HID projectors into vehicles that were originally equipped with standard halogen reflector headlights. It has also come to include any upgrades to a vehicle's existing projectors, whether they be the halogen or HID variety. Aftermarket HID projector retrofits are the best lighting upgrade currently available, but have significantly higher costs and generally require a greater knowledge & skill level to install compared to HID bulb kits.
On my 2015 GMC Sierra 2500HD I did install an aftermarket HID kit in my projector headlights. The stock halogen lights sucked. The HID's are great and aimed perfectly and have never had anyone flash me.
So here's my problem: I went for a state inspection and got rejected because of the "after market HID's.
I couldn't believe it. Has anyone been through this?