brandonstc6
Addicted to ArboristSite
I think the exit on those mufflers are on the back. I have seen saws melt the plastic above.
There does not have to be much room on the side for a muff mod. Here's a mod I did on a 3400 a few years ago. I put a slit in with a small dremel disk, heated it with a torch, worked it with a large screw driver and finished it off by pounding in and chisel and shaping around. There was no exhaust port on the side before I started.
View attachment 561829
That looks like good work! I had a very restrictive aftermarket muffler on a stihl 026/ms260 hybrid. I drilled two 3/16 holes in the front of the muffler for a little more flow and it seems to work pretty good. It makes the saw a little louder tho.
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