The Quiet Muffler was designed and offered by Tecumseh to reduce the exhaust noise that these type of units make. It's available for Tecumseh Engine Models HM 70-80-100, TVM Models and TVXL-170,195,200 powered Generators and Lawn Equipment.The muffler is 4 1/2" in diameter and 18" long. It is reasonably quiet. Like Franz said if you hook up to the engine exhaust with some pipe care should be taken to limit vibration from wallowing out the threads in the Tecumseh aluminum block. A few years back I helped build a dredge that had an 8 hp Tecumseh to power the winch.
Tecumseh Muffler 37350. 4.0 out of 5 stars 2. $141.99 $ 141. 99. FREE Shipping. Tecumseh 390332 Muffler Genuine Original Equipment Manufacturer (OEM) Part. $17.24 $ 17. 24. FREE Shipping. Only 10 left in stock - order soon. More Buying Choices $9.70 (3 new offers)