Has anyone heard of this muffler?

[soccerplayer2007]

Has anyone heard of this muffler?

http://dynomax.com/mufflers.php?muffler=vt

If so, thoughts? Seems like an interesting idea, but not sure what type of sound to expect.

 

[JoshMcMadMac]

A muffler with a check-valve...it seems like a good idea, but I would be concerned about reliability over time.

 

[cammerfe]

The design brings a whole new dimension to the running conversation regarding the need for muffler bearings.

KS