So i have a 2013 express with the normal headlights without HID's. I found 2012 Headlights that i like. Would they fit and work?

 

Really nothing?

 

I was wondering the same thing, probably best to check with a tech at the dealership. You realize that you will have to wire up the relays, etc. for the HID's. But here's where the puzzle comes in, unless the truck's harness and computer are properly configured, and they may or may not be, the signals from the switches, high/low beam, auto on/off, etc. may not work. We may want to wait a bit, though, because hear there a number of LED units coming into the market and they should be cheaper, cooler and longer-lasting.