OK, now I can almost see it on a few of my MVVS mufflers. I was thinking of making a new tailpiece for a standard muffler, but now see it would be better to just use a header and maybe some other regular pipe, or even a car style? Maybe a mousse can. Just thinking out loud. It is kind of hard to make a header without welding. I can only machine stuff at home, not weld aluminum. (steel yes) Too cold to fly now, but still thinking about stuff.