I am looking forward to another trapping season, and was looking through my gear. I want to try out a trappers cap this year, but did not really like the commercially available ones. Sooooooooooo rumaging through my junk pile I found a 2 1/2 to 2 1/4 exhaust reducer that fit over the pan on my MB 550 fairly well. On thing led to another thing, a couple of welds and some notches later I had a trappers cap. I screwed up and did not paint it a bright color, so there is a very good chance you might run across this laying around. Hope this helps someone else or gives you ideas.