Aftermarket ported muffler for MS660/ Stihl 066/Stihl 064 chainsaw models. 

 

This Fits all 1122 series Stihl & aftermarket powerheads. Allowing significant gains throughout the RPM spectrum. 

Muffler also allows for a “throaty report” when in the cut under load. Any questions don’t hesitate to email.

What you see is what you will receive. 

Easy to add a screen if you are cutting in a spark arrestor required area.