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FMF Factory 4.1 — RCT Stainless Full System (044477)

Part # 044477
Item #357805
Fits 3 motorcycles
  • Yamaha
    • WR450F · 2024-2026
    • YZ450F · 2023-2025
    • YZ450FX · 2024-2026
Regular price $1,074.99 Sale price$967.49 Save $107.50
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  • Low stock - 2 items left
  • Backordered, shipping soon

  • Flat $10 U.S. shipping, free over $100
  • Ships from one of three U.S. warehouses
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WARNING: Cancer and Reproductive Harm, www.P65Warnings.ca.gov
FMF Factory 4.1 RCT Stainless Full System — Yamaha WR450F (2024-2026), Yamaha YZ450F (2023-2025) + 1 more, 4-Stroke
Product Details

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.

  • Available in Natural Aluminum with Carbon Fiber End Cap
  • Massive Power gains throughout the RPM range.
  • Huge weight savings
  • New RTS (Rapid Tuning System)
  • FMF uses the highest quality proprietary blend stainless steel made especially to our standards.

Full system. Header and muffler included.

This is a 4-stroke exhaust. It is engineered for the 4-stroke engine architecture above and physically will not fit a 2-stroke bike. Verify your engine type before purchase.

Fitment

  • Yamaha WR450F 2024–2026
  • Yamaha YZ450F 2023–2025
  • Yamaha YZ450FX 2024–2026

Specifications

System TypeFull system
MaterialAluminum
Material GradeAerospace grade
FinishNatural
End Cap MaterialCarbon fiber (blue)
TechnologyFMF Resonance Chamber Technology (RCT)
Made InUSA
Best ForOff-road / Trail, MX / Motocross

Verified from Garamoto’s catalog & fitment data.

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