I just traded up to a 2012 JKU. I have seen a few pics and soundclips of the rugged ridge dual exhaust part #: 17606.75
I would like to possibly get it for the 2012. quadratec lists it for up to 2012, rugged ridge for 2007 to 2010. it is only axle back so I assume it will bolt up but not sure what it will sound like with pentastar.

has anyone tried it?

 

I'm about to order this muffler as well. Anyone have opinions? I want a nice deep mellow sound that is not much louder. This seems to be a good option for looks and sound.