FMF Factory 4.1 Slip-On Muffler for Offroad KTM and Husqvarna Models

Upgrade your offroad motorcycle with the FMF Factory 4.1 Slip-On Muffler, designed to deliver maximum performance and durability. Incorporating the latest resonance chamber technology, this exhaust system reduces sound levels while maintaining optimal power output, making it ideal for aggressive riding and competition environments. The patented core shape effectively minimizes noise, ensuring a quieter ride without sacrificing engine efficiency. Its innovative canister shape increases internal volume, allowing for more sound-absorbing material that enhances exhaust sound quality and reduces noise pollution. The chamber design is specifically engineered to refine exhaust pressure, improving throttle response and overall engine performance. Constructed with factory-forward engineering principles, the FMF Factory 4.1 centralizes mass to improve stability and reduces the likelihood of crash damage, providing durability in demanding offroad conditions. Tuned for specific applications, the exhaust features optimized core specifications that maximize power and responsiveness. The included innovative rear endcap allows for easy installation of tuning tip inserts or spark arrestors, giving riders flexibility to customize their exhaust system based on riding preferences and local regulations. The titanium midpipe significantly reduces weight, contributing to a lighter overall setup that enhances handling and agility. This slip-on muffler fits a range of 2015-2017 KTM and Husqvarna models, including the KTM 250 SX-F Factory Edition, 350 EXC-F, 350 XC-F, 450 SX-F Factory Edition, and Husqvarna FC 250 and FC 450 models. Crafted for offroad enthusiasts seeking superior performance and durability, the FMF Factory 4.1 offers a high-quality upgrade to your motorcycle’s exhaust system, ensuring both improved power and a refined sound profile for competitive and recreational riding alike.

Features:

• Incorporates the latest resonance chamber technology to reduce sound levels while maintaining maximum power output

• Patented core shape lowers noise without sacrificing performance

• Patented canister shape increases internal volume for more sound-absorbing material

• Chamber design enhances and refines exhaust pressure for better throttle response

• Factory-forward engineering centralizes mass, reducing crash damage risk

• Tuned exhaust with optimized core specifications for each application

• Innovative rear endcap allows easy installation of tuning tip inserts or spark arrestors

• Titanium midpipe provides extreme lightweight benefits

Product Type: Exhaust
Exhaust Type: Slip-On Muffler
Model: FACTORY 4.1
Segment: Offroad
Division: Exhaust
Class: Mufflers, Pipes, & Systems
Sub Class: Mufflers, Silencers, Slip Ons

FITMENT:
2015 KTM 250 SX-F Factory Edition
2015 KTM 450 SX-F Factory Edition
2016 Husqvarna FC 250
2016 Husqvarna FC 350
2016 Husqvarna FC 450
2016 KTM 250 SX-F
2016 KTM 250 XC-F
2016 KTM 350 SX-F
2016 KTM 350 XC-F
2016 KTM 450 SX-F
2016 KTM 450 XC-F
2017 Husqvarna FC 250
2017 Husqvarna FC 350
2017 Husqvarna FC 450
2017 Husqvarna FE 250
2017 Husqvarna FE 350
2017 Husqvarna FE 450
2017 Husqvarna FE 501
2017 Husqvarna FX 350
2017 Husqvarna FX 450
2017 KTM 250 SX-F
2017 KTM 250 XC-F
2017 KTM 350 EXC-F
2017 KTM 350 SX-F
2017 KTM 350 XC-F
2017 KTM 450 EXC-F
2017 KTM 450 SX-F
2017 KTM 450 XC-F
2017 KTM 500 EXC-F
2018 Husqvarna FC 250
2018 Husqvarna FC 350
2018 Husqvarna FC 450
2018 Husqvarna FE 250
2018 Husqvarna FE 350
2018 Husqvarna FE 450
2018 Husqvarna FE 501
2018 Husqvarna FX 350
2018 Husqvarna FX 450
2018 KTM 250 SX-F
2018 KTM 250 XC-F
2018 KTM 350 EXC-F
2018 KTM 350 SX-F
2018 KTM 350 XC-F
2018 KTM 450 EXC-F
2018 KTM 450 SX-F
2018 KTM 450 XC-F
2018 KTM 500 EXC-F
2019 Husqvarna FE 250
2019 Husqvarna FE 350
2019 Husqvarna FE 450
2019 Husqvarna FE 501
2019 KTM 350 EXC-F
2019 KTM 450 EXC-F
2019 KTM 500 EXC-F