I had this posted in The Woodpile, but want to bring up here also. I bought the muffler from a Facebook guy 2 years ago, many many tanks through. Blew the top right out while in a huge cut of Ash. This is my Husqvarna 450
This is a modded muffler that was thin and popped. Luckily, my friend/neighbor was able to tig some stainless over the top and now she rips again !