Product Details: Outfit your semi truck to be Ready for the Road Ahead™ with improved sound dampening, with the Power Products 12" Muffler Hanger. Thanks to its ability to help mount a muffler, this replacement device is the ideal option to decrease the volume of sound output from a muffler. Engineered with a frame-mounted design to remove the need for additional rubber straps or special installation tools. FleetPride is your First Click in Heavy Duty®.