no need to split the muffler its easier if you take it off the saw the screws are easier to get to just take the deflector off and pull the tube out i cut the deflector top and bottom towards the front off the muffler and bent the tab back i left the screen out your preference it runs much better now that was the most plugged up exhaust i have ever seen. i pulled the limiters and retuned its like a different saw now i also changed the rim to 3/8 and it pull an 18 inch bar very good now much better throttle response.
bigredd i am running a total bar husqvarna mount on mine it oils great my local stihl dealer made up some chain because echo has a different link count than husqvarna now i can run the same bars and chains on my 590 and 490 hope this helps.
bigredd i am running a total bar husqvarna mount on mine it oils great my local stihl dealer made up some chain because echo has a different link count than husqvarna now i can run the same bars and chains on my 590 and 490 hope this helps.