FMF Racing FMF045653 Factory 4.1 RCT Exhaust System with Stainless Steel Header and Mid-Pipe

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 exhaust system incorporates FMF Resonance Chamber Technology™ internally and externally to deliver performance-focused exhaust flow. Its shorter overall length helps reduce susceptibility to crash damage, while Factory Forward Engineering positions the muffler closer to the engine to help centralize mass. The system is manufactured at FMF Racing’s Southern California factory using aerospace-grade materials.

The exhaust system features a proprietary alloy-grade titanium construction, a blue anodized titanium muffler, and a carbon end cap. FMF states that the design provides power gains throughout the RPM range and includes the Rapid Tuning System (RTS). The supplied system includes a stainless steel header and mid-pipe.

Key Product Specifications & Technical Data

• Brand: FMF Racing
• Part Number: FMF045653
• Product Type: Powersports exhaust system
• Series: Factory 4.1 RCT
• Technology: FMF Resonance Chamber Technology™
• Muffler Finish: Blue anodized titanium
• End Cap Material: Carbon
• Header and Mid-Pipe: Stainless steel

What's Included in the Box

The Factory 4.1 RCT exhaust system with stainless steel header and mid-pipe is included. Fitment includes 2020–2023 Husqvarna FE350 and FE350S applications listed below, as well as 2020–2022 KTM 350 XCF-W applications. The listed fitment is: 2020 KTM 350 XCF-W; 2020 Husqvarna FE350; 2020 Husqvarna FE350S; 2021 Husqvarna FE350; 2021 Husqvarna FE350S; 2021 KTM 350 XCF-W; 2022 Husqvarna FE350; 2022 Husqvarna FE350S; 2022 KTM 350 XCF-W; and 2023 Husqvarna FE350S.

Features:

• FMF Resonance Chamber Technology™: Incorporates resonance chamber technology internally and externally.
• Shorter Overall Length: Designed to be less susceptible to crash damage and support Factory Forward Engineering.
• Titanium Muffler Construction: Uses a proprietary alloy-grade titanium blend with a blue anodized finish.
• Performance-Focused Design: FMF states that the system provides power gains throughout the RPM range and includes the Rapid Tuning System (RTS).

Fitments:
2020 Husqvarna FE350 Base
2020 Husqvarna FE350S Base
2020 KTM 350 XCF-W Base
2021 Husqvarna FE350 Base
2021 Husqvarna FE350S Base
2021 KTM 350 XCF-W Base
2022 Husqvarna FE350 Base
2022 Husqvarna FE350S Base
2022 KTM 350 XCF-W Base
2023 Husqvarna FE350 Base
2023 Husqvarna FE350S 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