Yeah. At first I simply ran 2.25" off the stock manifolds to the muffler and out of the truck. It was loud, nasty, raspy and simply awful sounding.
I had the that 3" glasspack laying around so I added that after the muffler. That mellowed things out a bit but it was still obnoxious.
Then I added the two 2.25" glasspacks before the muffler. I am finally happy with the exhaust note. Don't get me wrong, I love a loud, aggressive exhaust system (I ride a back-firing, crack on decel Harley and love it) , but its really hard to put a dual exhaust system on a V6 and have it sound decent. I think I've got the right combo on the Frontier finally.
Here it is with just the muffler. All blatty. I thought I liked it at first. It wore on me pretty quick.