EVA Sound Deadener KitThe EVA Sound Deadener Kit is die cut for easy installation. It's made from OE type, 1/16" thick Ethyl Vinyl Acetate (EVA) which is an asphalt based material used for sound dampening. It applies directly to the cab floor and reduces road noise and cab harmonics to give you a quieter ride. It also helps to insulate against heat and cold. To maximize insulation performance, use in combination with the Heat Shield Kit.Heat Shield KitThe Heat Shield Kit is die cut to match the EVA Sound Deadener Kit for easy installation. Consists of 1/4" thick, 24 ounce needle punched jute padding on one side which insulates against heat and cold. The other side has two layers of fiber reinforced aluminum foil reflecting up to 97% of radiant heat which helps to keep you warm in the winter and cool in the summer.