Derbi TT and the Arrow Pipe

I got a nice little pipe from 1977 the other day, it's for my Derbi, as the title implies. It looks very similar to an Estoril because of the silencer, but that is about as far as I would compare them. This pipe, was of course, built for some newer Derbi, perhaps one where the swing arm pivots with the motor, as the rear bracket was at the very back, and had nothing to attach to. Also, the stud holes on the pipe had to be narrowed a smidge to fit the factory spacing of the stock cylinder. I had to go purchase a new dremel, because my old one was lost in the move apparently. Once I had the cut off wheels, I removed the factory welds, and put the bracket on the top of the pipe right near the stock hanger location, and it worked out quite well. A quick trip to Indiana Oxygen for some Argon/CO2, and my little pop box was back at it. The pipe feels solidly mounted, and with a 12:12 SHA, lightened vario weights and increased travel on the vario itself, the bike does nearly 40. It's too cold to get a real GPS reading, but I would venture it does a real 37mph at least. I'd like to put on a larger carb, so we will see what comes of that, I'm pretty happy with it at the moment. Knobby tires are great for the snow as well.

Also, here is a picture of a van in my neighborhood.
In case you can't read, it says "Juggabago". I wonder what an all Juggalo moped gang would be like?