FMF Racing - FMF045647 - Factory 4.1 RCT Aluminum S/O with Carbon Cap

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 Aluminum S/O with Carbon Cap incorporates FMF Resonance Chamber Technology™ internally and externally. Its shorter overall length helps reduce susceptibility to crash damage, while Factory Forward Engineering moves the muffler closer to the motor to help centralize mass.

Constructed from aerospace-grade materials and manufactured at FMF Racing’s Southern California factory, the Factory 4.1 RCT features a proprietary alloy-grade titanium construction, a blue anodized titanium muffler, and a carbon end cap. FMF states that the design delivers power gains throughout the RPM range and includes the Rapid Tuning System (RTS).

Key Features & Performance Benefits

• Resonance Chamber Technology: Incorporates FMF Resonance Chamber Technology™ internally and externally.
• Factory Forward Engineering: Positions the muffler closer to the motor to help centralize mass.
• Shorter Overall Length: Designed to be less susceptible to crash damage.
• Rapid Tuning System: Includes FMF’s Rapid Tuning System (RTS).

Key Product Specifications & Technical Data

• Brand: FMF Racing
• Part Number: FMF045647
• Product: Factory 4.1 RCT Aluminum S/O with Carbon Cap
• Construction: Proprietary blend of alloy-grade titanium
• Muffler Finish: Blue anodized titanium
• End Cap: Carbon
• Manufacturing: Manufactured at FMF Racing’s Southern California factory
• Technology: FMF Resonance Chamber Technology™ and Rapid Tuning System (RTS)

What's Included in the Box

The product data does not specify the individual items included in the box.

Fitment

Fits 2020 KTM 350 XCF-W, 2020 KTM 500 XCF-W, 2021 KTM 350 XCF-W, 2021 KTM 500 XCF-W, 2023 KTM 450 XCF-W, 2020 Husqvarna FE350, 2020 Husqvarna FE350S, 2020 Husqvarna FE501, 2020 Husqvarna FE501S, and 2021 Husqvarna FE350.

Fitments:
2020 Husqvarna FE250 Base
2020 Husqvarna FE350 Base
2020 Husqvarna FE350S Base
2020 Husqvarna FE450 Base
2020 Husqvarna FE501 Base
2020 Husqvarna FE501S Base
2020 KTM 350 XCF-W Base
2020 KTM 500 XCF-W Base
2021 Husqvarna FE250 Base
2021 Husqvarna FE350 Base
2021 Husqvarna FE350S Base
2021 Husqvarna FE450 Base
2021 Husqvarna FE501 Base
2021 Husqvarna FE501S Base
2021 KTM 350 XCF-W Base
2021 KTM 500 XCF-W Base
2022 Husqvarna FE350 Base
2022 Husqvarna FE350S Base
2022 Husqvarna FE501 Base
2022 Husqvarna FE501S Base
2022 KTM 350 XCF-W Base
2022 KTM 500 XCF-W Base
2023 Husqvarna FE350 Base
2023 Husqvarna FE350S Base
2023 Husqvarna FE450 Base
2023 Husqvarna FE450 Heritage Base
2023 Husqvarna FE501S Base
2023 KTM 450 XCF-W 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