This is for the OEM modular bumper Baja bull bar. I temporarily installed this at first in a somewhat haphazard way screwing in the original long torx head bolts, but not the smaller supplied bolts, because I wasn’t sure if the supplied washers were stainless. A couple of the bolts had a hard time going in because the bull bar didn’t quite align with the holes. I wasn’t happy at this point. But after buying metric stainless washers and painting them black I reinstalled the bumper. This time I started with all the four shorter supplied bolts and once they were started, I did the rest of the bolts, leaving the two front face bolts for last. This fit much better and now I am fully happy with the bar. I am also happy with the design, and also it’s one of the most reasonably priced bars like this I could find. The quality of the welds and the paint is very good too. There was a tiny spot that I had to touch up with some black paint, but nothing meaningful. The one suggested change I would make to the company Is that where the bar attaches to the front face of the bumper, use a larger piece of metal on each side so that the bar can screw into four holes on the front face of the bumper, not just two holes as it’s designed presently. This would make for a stronger attachment.