I have the areo 4040XL on my truck and love it, There is no drone whatso ever, the only time it is loud is from 50-60 in overdrive, and accelerating. And the video that was post is how it sounds but the camera may not have caught it all the way, so it sounds better in person. I took mine to a muffler shop and the took off my cat and muffler and installed the 4040XL right before the muffler is bent to go over the axles. Well i hope this helps any. Goodluck. and by the way many people that have other exhausts have complimented my truck and and the way it sounded.
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06 Dodge Auto QCSB 4x4 short bed, 3.73, Superchip w/ Edge, silencer ring removed, K and N intake, Intake Manifold, 2" leveling kit, and rhino bed liner
1993 Dodge Cummins Project truck :pump mods, 100% over injectors, looking at twins