Where do you get a bigger muffler for a MS660?

[customsawyer]

I recently bought a MS660 and have heard on hear that you can get a bigger muffler for it. Can one of you wise men point me in the right direction.
Has anybody tried the other air filter that Bailey's offers? How much did it help?

Thanks Jake

[oldsaw]

You can get a factory dual port from your dealer or modify the muffler yourself.  Do an internet search and search this site on the topic.  You don't replace the whole muffler, just the front cover.

In either case you will have to richen up the mixture on the carb or you will risk seizing the saw due to an over lean condition.

Mark

[Ed]

Jake,
For an ms660 follow the same basic procedure as I did here on an ms460.
https://forestryforum.com/board/index.php/topic,29140.0.html

Ed

[customsawyer]

Thanks for the info I read that post of yours last night Ed but didn't know if there was some where I could just buy the muffler.
Jake