FMF Racing FMF041587 Honda CRF450X 2019-2026 Factory 4.1 RCT Anodized Titanium Slip-On 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 incorporates FMF Resonance Chamber Technology™ internally and externally to deliver performance-focused exhaust flow. Its shorter overall length is designed to help reduce susceptibility to crash damage, while Factory Forward Engineering positions the muffler closer to the motor to help centralize mass.

Constructed entirely from aerospace-grade materials and manufactured at FMF Racing’s Southern California factory, this muffler features a proprietary blend of alloy-grade titanium, a blue anodized titanium muffler body, and a carbon end cap. The Rapid Tuning System (RTS) and FMF Resonance Chamber Technology™ support massive power gains throughout the RPM range.

Key Features & Performance Benefits

• FMF Resonance Chamber Technology™: Incorporated internally and externally to support performance throughout the RPM range.
• 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.
• Rapid Tuning System: Provides FMF’s RTS performance feature.

Key Product Specifications & Technical Data

• Brand: FMF Racing
• Part Number: FMF041587
• Product Type: Powersports muffler
• Series: Factory 4.1 RCT
• Construction: Aerospace-grade materials
• Muffler Material: Alloy-grade titanium
• Finish: Blue anodized titanium
• End Cap: Carbon

What’s Included

One FMF Racing Factory 4.1 RCT muffler with a blue anodized titanium muffler body and carbon end cap.

Fitment

Fits 2019-2026 Honda CRF450X models.

Fitments:
2019 Honda CRF450X Base
2020 Honda CRF450X Base
2021 Honda CRF450X Base
2022 Honda CRF450X Base
2023 Honda CRF450X Base
2024 Honda CRF450X Base
2025 Honda CRF450X Base
2026 Honda CRF450X Base

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