Bradness's can be welded or bolted. I don't weld, so I bolted mine. Later, I ran into a problem when I installed my H&R springs. Those springs are wider than the SVT springs, so the bolt was hitting the springs. I removed the brace and cut the bolts short so they would thread in enough to temporarily support the brace. I then went to an exhaust shop and installed the brace with shortened bolts there for them to weld. Then removed the bolts and they filled the holes. A good side effect of this method is I was able to cut the side carpet perfectly (reinstalled the brace with the carpet in, then cut around).