I have it and like it. It screams at WOT but sounds great at idle.

 

Another Gisbon exhaust owner here. I have always loved the sound of Gibson on trucks, first heard it back in 1994 on a friend's father's truck. It had a deep, powerfull sound ... unlike the loud obnoxious sound every other truck had. My 1500HD has the Super Truck exhaust (dual tips out the pass. side corner). While inside you can barely hear it, great for when I take passenger's for a trip. Mind you, it will scream when you go WOT. But outside, it is soo deep, I can hear my wife driving it home from over a block away. Once parked in the driveway, the sound is soo deep, I can hear it over the TV. It is one of the better, more refined sounding exhausts available ... not just loud.

 

My neighbors love it because I leave for work at 6:00 am. I have actually trained one of their dogs to go pee when it hears my truck. Neighbor says every morning the dog will begin to wag its tail and want to go outside when it starts up. Maybe it wants to hear it a little better and not actually pee.