With those numbers, I'm guessing that truck was not tuned.
Yes, I like the MBRP 4" catback, but I don't have the resonator. It's weird though, I swear my truck is louder tuned than when it's stock. At idle, you cannot tell it's a V6 (other than it doesn't tick like a V8). Of course, under throttle, it doesn't sound like a V8, but it's not raspy at all. Someone told me the other day riding to lunch that my truck sounded angry. And, he drives a Hemi. I do get a little drone in the cab around 2250 rpm, but it's not obnoxious. I listened to a lot of exhausts before purchasing it, but as you know, vids really can't be used versus hearing an exhaust in person. I pull a fairly heavy TT, and it's not really loud in the cab at highway cruising speed. I've tried to make some vids, but you just can't get the same effect as in person. Here's a couple lame attempts, one a 2nd gear pull and one a first gear pull letting off for traction. The DuraTracs get pretty loud over 80.
http://vid121.photobucket.com/albums/o233/phantomblackgto/101_4960.mp4
http://vid121.photobucket.com/albums/o233/phantomblackgto/101_4961.mp4