2012 automatic 2-door with 3.73s

Mines pretty quiet at 60+ too, running the Evo Comp (dumps before the axle), been about a year, tone quieted down a lot. I use to run with OD off, 3.8L, 35s, 4:10s, automatic and the tone was fine. I just regeared to 5:38s last week, and keeping OD on, drones like crazy cruising around 1500 RPMs.

I've only been looking specifically at threads/videos/in person/data in general at 4 doors with the 3.6, so I cannot speak to 2 doors or people running the 3.8

Here it is at WOT. Sounds mean.
http://www.youtube.com/watch?v=pbfVu_Ev5V4

Get the one from Jeepswag (Woods). It's an off road relocation design. Sounds great, and much milder than the other big name brands.

Can you take a video of cruising at 70mph?

Yea. Next time I get on the highway

just ordered the dynomax/evo kit for my 12 jkur. My buddy installed the kit for his 08 jku a couple days ago and i got to ride in it. I really like the sound of the exhaust a lot. Yea it does have some drone at low rpms but it not that bad. My 02 Z06 with GHL catback had way worse drone to it. That kit caused things to rattle inside my vette while just driving around. I really like the sound of this dynomax kit it is Def deeper tone than stock or the AFE kit i took off my jeep.

Anyone have an experience on having the aftermatket exhaust on Diesels? Does it make any improvements

Yes you will get much more power with a diesel exhaust vs. a jeep