Dennis Kirk Inc.
Legendary Service... Ask Your Friends - Since 1969
Need Assistance?
Over 150K Powersport Items - In-Stock and ready to ship today! View tires, apparel, helmets, exhaust and more!

FMF Factory 4.1 Natural Titanium Slip-On Muffler - 045221

  • Part #: 433964
  • Manufacturer Part #: 045221
This item is no longer available

Overview of FMF Factory 4.1 Natural Titanium Slip-On Muffler - 045221

  • All systems and slip-ons have a titanium or carbon fiber muffler with titanium end cap
  • Boosts low-mid torque, broader powerband, more over-rev
  • Customize with performance tuning inserts and spark arrestor module
  • Titanium slip-on muffler with titanium midpipe; same muffler as Factory 4.1 system
  • Titanium slip-on muffler with stainless steel midpipe
  • Fits stock or FMF header - boosts low-mid torque, broader powerband, more over-rev
  • Features exclusive proprietary Chamber Core technology
  • Factory Forward Engineering centralizes mass, improves handling
  • All titanium construction - canister and end caps
  • Made from premium quality American materials
  • Customize with performance tuning inserts and spark arrestor module
  • Meets AMA sound requirements on most models

Included Items:
(1) Muffler
(1) Muffler hanger
(2) Springs
(1) Instructions

Specs for FMF Factory 4.1 Natural Titanium Slip-On Muffler - 045221

Type - Exhaust Muffler/Silencer w/o Spark Arrestor
Units Each
Weight 5.70 lbs

Specs for FMF Factory 4.1 Natural Titanium Slip-On Muffler - 045221

Type - Exhaust Muffler/Silencer w/o Spark Arrestor
Units Each
Weight 5.70 lbs

Fitment for FMF Factory 4.1 Natural Titanium Slip-On Muffler - 045221

See if this part fits your ride

Part 433964 fits the following machines

KTM
  • 2012 KTM 450 XC
  • 2010 KTM 450 XC
  • 2009 KTM 450 XC
  • 2008 KTM 450 XC
  • 2012 KTM 525 XC
  • 2010 KTM 525 XC
  • 2009 KTM 525 XC
  • 2008 KTM 525 XC
Loading reviews, please wait...

Instructions and Manuals for FMF Factory 4.1 Natural Titanium Slip-On Muffler - 045221

Owner's Manual Owner's Manual PDF 230.7 KiB