I've been hearing a clunking noise from the rear of my MINI going over bumps. Both I and the previous owner thought it was from the worn rear endlinks... Well, after replacing those, the noise was not only still there, but got progressively louder over the next couple days! Finally last week, I hit a bump and there was a loud bang, followed by what sounded like a dumpster being dragged behind the car!!!
I got out to look, and found the straps for the left side muffler had been rusted through for quite a while, and finally snapped!!! The muffler decided it didn't want to stay completely attached.... LOL...
Looking around online, I lucked out and found the rear section for an Invidia exhaust for sale locally!!!
http://www.ebay.com/itm/221569582382
I couldn't argue with the price, so I clicked the "buy it now", and picked it up a couple days later. A little welding, and a clamp, and the new muffler was on! The car now sounds great, and has a terrific burble off idle... Unfortunately, the knocking noise is still there, so the search continues...