Cut4fun, I went out a while ago and gave the saw a try and I was suprised at the difference it made. Has more power for sure. Louder, yes. Does that bother me, no. I drilled two 3/8" holes in the front down lower on the muffler also. Others that have this style may consider the same. The little 211 that I have, I only had to open up the exit hole some and remove the screen. There was no other restrictions in the muffler can on it.bg