[pachieh]

I'll try with climate off, but I don't hear it inside the car when the windows are up. Definitely outside...

I'll crawled around under and didn't see/feel anything loose...

Closer inspection of the broken exhaust hanger shows a hole where the hanger broke off. It's about two inches long and the exact shape of the weld on the hanger. I guess this COULD cause the problem with exhaust having a "flute like exit" disrupting the even flow out...