Product Overview

Husqvarna 5 Series Performance Muffler – Fits 545 / 550XP Mark II
Bolt-On Power. CNC Precision. Canadian Built.

Unlock the full potential of your 545 or 550XP Mark II with this high-performance muffler, designed to improve flow, reduce backpressure, and withstand the harshest cutting conditions.

Fits: Husqvarna 545 / 550XP MK2 (Mark II)
Construction: Precision CNC-machined from 6061 billet aluminum
Spark Arrestor: Removable stainless steel screen (regulation compliant)
Origin: Made in Canada
Warranty: Backed by a Lifetime Guarantee

Performance Upgrades Over OEM:

+10mm Wider Exhaust Port for improved flow
Wider Flow Channels = More Power
Thicker Mounting Plates for durability under stress
Longer Front Mount Bolts for a secure fit

Installation Notes:

2 front bolts included (shorter 25mm bolt goes under pipe)
Hand-thread the short bolt before installing the others
Install all bolts loosely first, then snug them down—no over-tightening
Use a 10mm open-face wrench to reach front bolts
Machining marks on front/side can easily be removed with a Scotch-Brite pad for a polished look