Okay, so I had to go track down the 77 Sportster Cafe Racer. I hung out with a couple of the guys that their dad was one of the execs at the local HD factory in Tomahawk. They were in their teens and early twenties. The one kid took it out. Ran a 5 Mile loop. You could hear it all the way around. Those pipes didn't have much for baffles in 'em. You could hear it the whole way out anf back.
When I stand by it nowadays, it looks tiny.
Speaking of tiny, in their clothing shop they only had three xls was the largest size I could find. Not a single tall.