John,
Yes, same mufflers.... just moved/extended the pipes. It sounds easy if you say if fast. But, with the Putzke Bilstein shock kit and radius control arms it was a bit of a challenge. I'd be happy to share pics of the project if you're interested. It would have been easier to do during the build than a year later. That said, I'm very happy with the change. Still has a great sound, just turned the volume down... it may be a bit deeper tone due to the extra length. At cruising speeds you can now hear the radio or talk.... wife likes it much better.
Cheers,
Steve