Who says I never finish anything?
New pipes for the Bug Killer. I bought the tubing for this project FOUR YEARS AGO, almost exactly to the day.
Part of the holdup was the welding of these hanger nuts. The tubing is 1-1/2" OD 316L Stainless Steel 16 gauge (.065), polished. The nuts are stainless. My welder friend who welds stainless just recently returned to town after being gone for a couple of years.
A couple of before pics borrowed from my $40 Amazon Saddlebag thread. In the second pic, note that the welded hanger nut broke, and the pipe is secured with tie wire. It's been that way for at least two years.
Baffle swap. This is one of the first baffles I ever made. I now make them shorter, with smaller diameter EMT, and with tunable 1/4" screws. It's all in this thread:
https://www.xs650.com/threads/homemade-baffles-for-short-pipes.26822/
That thread includes good links to other relevant threads for those making their own pipes, including the needed pipe adapter, clamp, and trim.