OK, I think this is likely a long shot, but I'll give it a try. Several owners here have already "upgraded" their exhaust to a Borla (most popular) or similar. For those that have done so, is anyone interested to "donate" their stock muffler to me in the name of science? I have a few connections in the exhaust industry and there's some interest to reverse engineer from Ford's original design. This reverse engineering will likely be invasive, so you wouldn't get the muffler back. If there's any volunteers, please PM me. Of course, I'll pay shipping, and if anything became of the experiment, you'd be taken care of. (No promises.) Thanks.