This is a quality aftermarket replacement part for Stihl MS440 MS460 044 046 chainsaws. This part is a direct replacement with no fitment issues. All parts are in stock here in the USA. Please check our other listings for new and used chainsaw parts and manuals. The item "Stihl MS440 MS460 044 046 Chainsaw Dual Port Muffler" is in sale since Tuesday, November 25, 2014.This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Outdoor Power Equipment\Chainsaw Parts & Accs". The seller is "dssjms" and is located in Columbus, Ohio. This item can be shipped to United States.