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FMF Racing Factory 4.1 RCT Slip-On Mufflers

Not Yet Reviewed

FMF Racing Factory 4.1 RCT mufflers offer the latest technology inside and out. Hand-built using aerospace-grade materials, they feature Resonance Chamber Technolog
FMF Racing Factory 4.1 RCT mufflers offer the latest technology inside and out. Hand-built using aerospace-grade materials, they feature Resonance Chamber Technology. FMF's patented core enhances and refines exhaust pressure waves for optimal power output, while lowering the sound levels. Their redesigned canister shape allows for a maximum volume of packing material that's formulated for durability and sound attenuation. Plus, their RTS (Rapid Tuning System) makes for easy sound insert changes, as well as adding US Forestry Approved Spark Arrestors. They're constructed using aerospace-grade materials, run quieter th
FMF Racing Factory 4.1 RCT mufflers offer the latest technology inside and out. Hand-built using aerospace-grade materials, they feature Resonance Chamber Technology. FMF's patented core enhances and refines exhaust pressure waves for optimal power output, while lowering the sound levels. Their redesigned canister shape allows for a maximum volume of packing material that's formulated for durability and sound attenuation. Plus, their RTS (Rapid Tuning System) makes for easy sound insert changes, as well as adding US Forestry Approved Spark Arrestors. They're constructed using aerospace-grade materials, run quieter than stock, and gain huge weight savings and massive power throughout the rpm range. FMF Racing Factory 4.1 RCT mufflers--not only do they sound amazing, but look amazing, too!

Results 1 - 8 of 8

Slip-Ons and Silencers, Factory 4.1 RCT Slip-Ons

Part Number: FMF-041611

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

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Estimated Ship Date: Dec 17, 2025 if ordered today

Muffler, Factory 4.1 RCT Slip-On, Oval, Titanium, Blue Anodized, Carbon Fiber End Cap, Turndown Outlet, Yamaha, Each

Part Number: FMF-044445

Not Yet Reviewed

Estimated Ship Date: Dec 19, 2025 if ordered today

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Estimated Ship Date: Dec 19, 2025 if ordered today

Muffler, Factory 4.1 RCT, Oval, Titanium, Blue Anodized, Carbon Fiber, Turndown Outlet, Husqvarna, KTM, Each

Part Number: FMF-045629

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

4.1 RCT ANOD TI S/O W/CARBON CAP KAW

Part Number: FMF-042412

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

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Estimated Ship Date: Dec 17, 2025 if ordered today

Fact 4.1 Rct Anod Ti S/O W/C.Cap Kaw Kx450F

Part Number: FMF-42404

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

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Estimated Ship Date: Dec 17, 2025 if ordered today

Muffler, Factory 4.1 RCT Slip-On, Oval, Titanium, Blue Anodized, Carbon Fiber End Cap, Turndown Outlet, Gas Gas, Husqvarna, KTM, Each

Part Number: FMF-045633

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

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Estimated Ship Date: Dec 17, 2025 if ordered today

4.1 RCT ANOD TI S/O W/CARBON CAP TRI

Part Number: FMF-045695

Not Yet Reviewed

Estimated Ship Date: Dec 17, 2025 if ordered today

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Estimated Ship Date: Dec 17, 2025 if ordered today

Muffler, Factory 4.1 RCT Slip-On, Oval, Titanium, Blue Anodized, Carbon Fiber End Cap, Turndown Outlet, Yamaha, Each

Part Number: FMF-044455

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

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Estimated Ship Date: Dec 15, 2025 if ordered today

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