<p>This Architectural Drawing is AutoCAD 2dd rawing of Muffler and tubes details in AutoCAD, dwg file. muffler, also called silencer, device through which the exhaust gases from an internal-combustion engine are passed to <strong>attenuate (reduce) the airborne noise of the engine</strong>. The idea of the muffler in the system is to reduce the sound the engine makes and <strong>the exhaust pipe controls the amount of gas released, while the muffler controls the level of noise</strong>. For more details and information download the drawing file.</p>