I just had mine installed yesterday. And my first impression was that I had a faulty exhuast. It sounded good at idle, but when I gave it some throttle, it was LOUD. Almost embarrassing. I even crawled under to look for leaks. At 1500-2000 RPM it resonates in the interior. Above 2000RPM at cruise, it is SILENT. Go figure. I really think it will mellow, because it does not sound like the PV that I had heard before, whether PV-1 or PV-2.
It is mounted with equal length extensions on both ends and welded.