Not a lot other then it look much more rugged. I passed on it when ordering my 2021 JLUR last week because I will buy one of the knock offs on EBay. Bought one for my 2020 JLUR and it was equally in build and looks to the overpriced factory bumper.
To have actual functional bumpers. The plastic ones only play a bumper on TV. So the real question is why not get the steel bumper group?