Pendleton - Whisperwool Muffler. Color Lumber. On sale for $74.63. MSRP $99.50.. 5.0 out of 5 stars+3 colors/patternsBrand NamePendletonProduct NameWhisperwool MufflerColorLumberPrice$74.63MSRP: $99.50Rating5Rated 5 stars out of 5(3)