Second hand info here, from ram1500diesel and here...so take this free advice for what it's worth.
It's been said that there's almost nothing to gain from the intake, and without a delete a cat back adds near nothing to sound or performance. Sound wise I removed the engine covers and got a minor increase in that diesel sound. Very minor, but I also wanted to watch for leaks so it made sense.
Waiting, not so patiently, on a gde or HD diesel supply tune personally. Cutting back on the pilot injection should add some diesel clatter. The great white north also still has delete tunes for sale. Lots of other neat stuff to buy without flushing my money away.