THIS LISTING IS FOR A NEW HIGH PERFORMANCE DUAL PORTED WITH SPARK ARRESTOR MUFFLER  FOR  HUSQVARNA  545 and 550XP chainsaws.

DOES NOT FIT 562XP OR 572XP - ONLY 545/550XP 

NOT  FIT 550XP MARK II - ONLY FITS ORIGINAL 545 / 550XP

This muffler works and sounds really good on these saws, especially if the saw is ported. This muffler does have a spark arrestor screen on both ports. It does come with a new gasket.  Again this is a great sounding muffler and helps keep the saw cooler as well. Thanks for looking!