Thanks, to MVieira for sending his downpipe, he's a real nice guy. I now realize what happened to mine. It didn't rust, the weld tore out where the 1/2" rod mounting bar was welded to the bottom of the pipe. I didn't even realize mine didn't have the mount anymore, until I saw Mike's.
Check your Magnaflow pipes where the transmission mounting bar support is welded on, because on checking MVieira's downpipe, it also has an inch long hairline crack right at the weld.