FMF Racing - FMF044400 - YFZ450 Factory 4.1 S/O Anodized Titanium Muffler

The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory.

• Highest-quality proprietary blend of alloy grade titanium
• Blue anodized titanium muffler with carbon end cap
• Massive power gains throughout the RPM range
• Rapid Tuning System (RTS)

The FMF Racing Factory 4.1 RCT muffler uses FMF Resonance Chamber Technology™ internally and externally to deliver power gains throughout the RPM range. Its shorter overall length helps reduce susceptibility to crash damage, while Factory Forward Engineering positions the muffler closer to the motor to help centralize mass.

Constructed from aerospace-grade materials and manufactured at FMF Racing’s Southern California factory, this muffler features a proprietary alloy-grade titanium construction, blue anodized titanium finish, and carbon end cap. The Rapid Tuning System (RTS) is included as part of the Factory 4.1 RCT design.

Key Features & Performance Benefits

• FMF Resonance Chamber Technology™: Incorporates internal and external resonance chamber technology.
• Factory Forward Engineering: Moves the muffler closer to the motor to help centralize mass.
• Shorter Overall Length: Designed to be less susceptible to crash damage.
• Power Gains: Delivers massive power gains throughout the RPM range.

Key Product Specifications & Technical Data

• Brand: FMF Racing
• Part Number: FMF044400
• Product Type: Powersports muffler
• Product Name: YFZ450 Factory 4.1 S/O Anodized Titanium Muffler
• Construction: Proprietary blend of alloy-grade titanium
• Muffler Finish: Blue anodized titanium
• End Cap: Carbon
• Tuning System: Rapid Tuning System (RTS)

What's Included in the Box

FMF Racing YFZ450 Factory 4.1 S/O Anodized Titanium Muffler.

Fitment

Fits 2009–2016 Yamaha YFZ450R models and 2010–2011 Yamaha YFZ450X models, as specified: 2009 Yamaha YFZ450R; 2010 Yamaha YFZ450R; 2010 Yamaha YFZ450X; 2011 Yamaha YFZ450R; 2011 Yamaha YFZ450X; 2012 Yamaha YFZ450R; 2013 Yamaha YFZ450R; 2014 Yamaha YFZ450R; 2015 Yamaha YFZ450R; 2016 Yamaha YFZ450R.

Fitments:
2009 Yamaha YFZ450R Base
2009 Yamaha YFZ450R SE Base
2010 Yamaha YFZ450R Base
2010 Yamaha YFZ450R SE Base
2010 Yamaha YFZ450X Base
2011 Yamaha YFZ450R Base
2011 Yamaha YFZ450R SE Base
2011 Yamaha YFZ450X Base
2012 Yamaha YFZ450R Base
2012 Yamaha YFZ450R SE Base
2013 Yamaha YFZ450R Base
2013 Yamaha YFZ450R SE Base
2014 Yamaha YFZ450R Base
2014 Yamaha YFZ450R SE Base
2015 Yamaha YFZ450R Base
2015 Yamaha YFZ450R SE Base
2016 Yamaha YFZ450R Base
2016 Yamaha YFZ450R SE Base
2017 Yamaha YFZ450R Base
2017 Yamaha YFZ450R SE Base
2018 Yamaha YFZ450R Base
2018 Yamaha YFZ450R SE Base
2019 Yamaha YFZ450R Base
2019 Yamaha YFZ450R SE Base
2020 Yamaha YFZ450R Base
2020 Yamaha YFZ450R SE Base
2021 Yamaha YFZ450R Base
2021 Yamaha YFZ450R SE Base
2022 Yamaha YFZ450R Base
2022 Yamaha YFZ450R SE Base
2023 Yamaha YFZ450R Base
2023 Yamaha YFZ450R SE Base
2024 Yamaha YFZ450R Base
2024 Yamaha YFZ450R SE Base
2025 Yamaha YFZ450R Base
2025 Yamaha YFZ450R SE Base
2026 Yamaha YFZ450R Base
2026 Yamaha YFZ450R SE Base

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1