Thanks for the feedback.
Preston, you mentioned about "gutting" the muffler. I have read similar comments on other threads. Just wondering what is meant by it and how it can be modified. Do people modify the mufflers to reduce back pressure on the exhaust? Does this provide more power? If it does, do you have to make any other modifications to the saw and/or fuel mixture to make sure the engine is not harmed?
You also mentioned a maxi-flow filter. I assume that it helps deliver more air to the engine, maybe in combination with the more open exhaust. Was this filter something available from Stihl/another supplier, as an off the shelf item?
Thanks for any feedback you can provide. This is a great site for information exchange.