Here's a sound clip of my Armada with a Banks / Titan system installed by my dealer. I just recently changed the muffler to the longer Banks muffler offered in The Banks Tundra system to cut down on the in cabin drone. There is little to no drone now at any freeway speeds. Around town there is drone on accelleration but once at any cruising speed, it's quiet in the cabin. On the outside it still sounds muscular. You can see new pics of it in the "Banks Exhaust Question" Thread.