Review on Walker 22771 Muffler by Eddie Curd

5 stars! This is the perfect solid replacement for my CAT backhoe, slightly thicker in the middle than the original but looks great on the machine, now all coated in heat resistant black paint to look factory. It's not a straight pipe, it has a cup in the middle of the full 5" baffles, which allows the exhaust to flow through the screen and back through the screen to the exhaust, making it very quiet. I installed this in conjunction with the new stock muffler (the bagger now has 2 separate mufflers). The loudest part of the engine noise now comes from the fan, PVC valve and injection pump in that order. Total exhaust flow at full speed open 8 cylinder diesel and sooooo quiet I am very satisfied with this product!