Yes, and even so it's quite loud!
I've obtained what seems to be an oem muffler of that type,
with quite complicated looking internals (gazing into it).
I'm keen to get this show on the road, to try it out).
Someone here has had some early dommie mufflers remade with the original type internals replicated,
and the difference is like chalk and cheese. So is the price though !
btw, I've also obtained the current Enfield quiet type muffler, and its even longer...
(as a discard, so the list price won't cause any fainting spells).