Dual port muffler for Husqvarna 365 371 372XP OE 372XP XT  385XP 390XP. Also fits many Jonsered models. Keep your saw running cooler and increase cutting speed. Muffler contains no spark arrestors or baffling. Exhaust ports are 7/8" X 3/4". Rubber plugs included to close ports while not in use. International shipping to many countries.  

  If you have any questions, please ask. No returns.

   I offer this with 3/4" X 5/8" ports also. 

 Please see my other items. 

  If you have a 390XP and you always thought it should have more power, please try this.

  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.