Undaunted MFG 661 Muffler Cover Squish band cut for smaller

Squish band cut for smaller combustion area

the ultimate cold-weather workhorse

Perfect for high-compression saws or users who wear thick gloves

/ 309 Machine BILLET 3/4 wrap - 32 oz

Undaunted MFG 661 Muffler Cover Squish band cut for smallerEnhance power and improve engine cooling with this precision engineered exhaust system designed for the STIHL MS 661. Made from lightweight 6061 T6 billet aluminum, a high strength aerospace alloy known for excellent heat dissipation, the one piece muffler cover optimizes exhaust flow while helping to keep your engine cooler and extend component life. Proudly manufactured in the USA and backed by a lifetime warranty, this exhaust system delivers