Question regarding my split exhaust -- Part #46746 in the picture linked here has rusted through just short of one of the joints and is severed completely. http://www.autopartswarehouse.com/images/domestic/images/walker/0811.jpg What's the common name for this piece? Connecting pipe? Some seem to call it "muffler," though I thought that referred to the tailpipe piece specifically. Just trying to read up so I know better what I'm going in to pay for.