These are brand new GM OEM RS headlights for the 2014-2015 models. These are not aftermarket models. These lights are perfect for those looking to upgrade from their stock halogen lights to the RS HID style.. Conversion harness is needed when doing this upgrade. Please see link below to purchase harness Non RS to RS Harness:Install Instructions: Removal of the front bumper is required in order to install the headlights.. After removing the bumper the headlamps are simply held in with the 2 mounting bolts on the top tab, you can re-use the bolts to mount the new lamps. Our harness has 4 connection points. 1 & 2.) Plug our harness into the existing headlamp connector at each headlight and also plug the other end into the new headlight.. 3.) Behind the passenger side of the bumper you will notice a connection point from where the body harness goes into the bumper harness, simply unplug this connection and install our harness inline with this harness. 4.) Add-a-fuse. This connection is necessary for the halo to operate. In the under hood fuse block, locate circuit 15, which is a 5 amp fuse and remove this 5 amp fuse and install it into the vacant cavity on the add-a-fuse. The add-a-fuse should now have a 10 amp and a 5 amp fuse installed in it. Simply plug the add-a-fuse into circuit 15 5.) You will notice a ring terminal wire on the harness this get's connected to the power stud located in the uder hood fuse block 6.) Verify lamp operation. Halo's will be on day and night..
