I installed the lightbar (22" curved Autofeel lightbar from amazon) without removing the bumper, and just bolted it to the plastic bumper cover (using some thick plastic on the backside to add more support. I also used some zipties for to the metal bumper for extra security (these dont really support the light but were used just in case the plastic bumper didn't hold I wouldn't drag the lights).
I also used the autofeel wiring kit for front and back (just supply positive and negative and comes with wireless remote to didn't have to run any wires into the cabin)
The back lights were installed and bolted directly into the bottom of my OEM hitch.
Any questions let me know.