They come off pretty easy I had to replace my front bumper so I pulled off every bit of plastic to swap it over to the new one, With the air dam removed you'll still have the active air dam behind it that will also have to be removed. I had mine off but have to run a front plate here in CA and thought it looked funny because of the shape of the bottom of the bumper the plate hangs downs lower than than the actual bumper. There is one picture on this site floating around of a bighorn without the lower air dam on it its a black truck no front plate, It looked pretty good, that had similar specs to yours as far as lift and tire size, I just don't remember what thread the picture was posted in.