Homeowner saw muffler mod

[Gunsling3r1988]

I was considering a muffler mod for my Husqvarna 440, not so much for more power, though that would be nice, but to help it run cooler. Is it worth doing a muffler mod on a homeowner saw?

 

[RedneckChainsawRepair]

I dont know how choked down a husky 440 muffler is. But on a stihl 029 290 you can see gains of 18%-23% just on a simple 30 min muffler mod on them.

I just did a free no cost gill one on my stock 359 I got on trade. Open baffle in middle in couple more spots inside and gilled the side.

 

[ChillyB]

Had a little old Husqvarna, maybe a 140? Had a cat converter muffler. I gutted it and I'm sure it ran better and cooler. It couldn't do otherwise.