Postman delivered my new exhaust pipe and a Sportster seat a few hours ago.
Of course I couldn't wait to hear the pipe, So...
Man is this baby LOUD! I looked through it, and all it has is a kind of round "snuffer" covering about half the middle, and that is supposed to direct "some" of the exhaust through a baffle pipe with holes, about an inch in diameter less than the outer pipe.
And where the Dyna muffler on an extension didn't backfire any more than the stock can, this thing is sounding like .22s mixed with the occasional 12ga.
I got it to putt around the block without being too annoying by backing the idle mix screw about 1-1/2 out from stock. Still sounded like a cannon when I rolled the throttle off though.
Gonna take some serious jetting to settle this pipe down, but I'm tempted to stick with it and see how civil I can get it to behave. If I can minimize the backfires and short shift through the neighborhoods, I don't mind a bit having the loudness out on the highway or backroads, or interupting those stop light cell phone calls at intersections
Gonna have to fabricate a bracket, and thinking about taking 3-4 inches off of it (requiring a trip to the muffler shop to get the pipe swedged out). As long as there is still enough straight pipe to keep my chrome flame heat shield