OK, so recently a buddy asked me if I wanted his D&D slip-on for trade for my stock exhaust. When i asked why, he said it was too loud. He said it was the D&D Quiet Tech so I gladly accepted the trade thinking how much louder could it be? I’ve read some product reviews and seen some YouTube vids along with some post on the forum. I thought it was gunna be a little louder than stock but this thing is rediculous. I absolutley love the way it sounds and am planning on keeping it. However, Inside or outside the cab it is mind numbing loud. I’m wondering if maybe he mistakenly purchased the D&D Barker instead of the QT? Is there anyway to tell the difference between the two? And if it is the Barker can it be transformed into the QT?