Keep your saw running cooler and increase cutting speed. Muffler contains no spark arrestors. 
This is a max flow muffler for 357XP and 359. Very good for ported or high performance based saws.
I offer this in a large single port version that is great for non ported saws. 
International shipping to many countries.
I have been producing and selling performance based high flow mufflers since 2018.
If any of MY mufflers fail due to my workmanship, I will repair or replace the muffler free of charge to the original buyer. Buyer pays one way return shipping only.
Take a look at my other items.
Thank you for your consideration.