I have one of these mufflers too. Mine broke to where it’s not repairable the way I see it. I’ll see if I can find the pieces and post a picture. The tail section that’s riveted to the front - mine broke before the “band” the rivets go through. The aluminum cracked. The aluminum is very thin and riveting probably isn’t the best way to manufacture mufflers. Probably why they nearly went out of business.