Back to Exhaust: Full System

FMF Factory 4.1 — RCT Titanium Anodized Full System (044478)

Part # 044478
Item #357806
Discontinued. This part won't be restocked. We're selling the remaining stock, once it's gone, it's gone.
Fits 3 motorcycles
  • Yamaha
    • WR450F · 2024-2026
    • YZ450F · 2023-2025
    • YZ450FX · 2024-2026
Regular price $1,374.99 Sale price$1,237.49 Save $137.50
/
Shipping calculated at checkout.
  • In stock, ready to ship
  • Backordered, shipping soon

  • Flat $10 U.S. shipping, free over $100
  • Ships from one of three U.S. warehouses
  • Secure checkout
WARNING: Cancer and Reproductive Harm, www.P65Warnings.ca.gov
FMF Factory 4.1 RCT Titanium Anodized 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 Blue Anodized Titanium Muffler with Carbon End Cap
  • Massive Power gains throughout the RPM range.
  • Huge weight savings
  • New RTS (Rapid Tuning System)
  • FMF uses the highest quality proprietary blend of alloy grade titanium 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
MaterialTitanium (proprietary alloy grade)
Material GradeAerospace grade
FinishBlue anodized (muffler)
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.

You may also like