Shelby mustang super snake sound deadening is likely the only thing lacking in this otherwise awesome car. Most of Shelby Cobra fans would like to hear the roar of that great motor, and hear the sound of the road, but maybe not all the time, hour after hour, on the road. It would sort of get in the way of thoroughly enjoying your stereo, or having quiet conversation with your friends or companion. Boomer Nashua was trusted with solving the too much full time Super Snake sound situation. We carefully disassembled the interior and applied special automotive sound deadening material to the ceiling, floors, and rear. When we finished you could enjoy the quiet interior, and when you wanted to hear the motor or the road, you just rolled down the windows. All’s well that ends well, we do that at Boomer Nashua.