Danimal, I'm 99% certain that they are the same internally.
Also, I have a variety of stock mufflers and may be willing to trade one of mine for yours if it is similar to the Dansk 'Sausage' that was on my '97:
On mine some of the mounting brackets were cracked causing the rattle. If that's the case with yours, any good muffler shop or welder should be able to repair it.
If you are interested in a trade, I'm willing to ship mine at my cost, then you ship yours at your cost (repaired or not) after you have swapped them out.