Fits perfectly, excellent craftsmanship. Woke the stock saw up considerably, more power quicker revving. This pipe is quite loud which I don't mind as I run it in the middle of nowhere. I run Egan straight shot muffler covers on my Stihl saws and this pipe is louder than those. Great product if noise is not a factor.
Much louder , a firecracker of a saw now, cuts super fast as it needs to be, have a 1/4" chain; 10 inch Panther bar. Pretty radical, and the saw is just stock. Light and Fast...
Got gains in hp tourqe and rpms in the cut even over my modified muffler. I definitely plan on buying one of these for my ms461, 026 and 660. Very impressed. Very well crafted. Built to last.