Check the listing for details. Ported muffler for Husqvarna 357 357XP 359 359 EPA. Condition: New. Listed at 54.50 USD. Keep your saw running cooler and increase cutting speed. This muffler contains no spark arrestors. Rubber plug is included to close port while not in use. If you have any questions, please ask. No returns International shipping to many countries. I offer this in a dual port model also, but this muffler breathes plenty good for any non ported saw. I receive many questions if this contains a baffle plate. It contains what is left of the baffle plate after I remove a portion of it. You can be fully assured there is absolutely no exhaust interference from baffling. Please see my other items. I have been producing and selling performance based high flow chainsaw 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 purchaser. Buyer pays one way return shipping only. Thanks for your interest and support.