Description
Combining advanced FMF Resonance Chamber Technologyª and Factory Forward Engineering, the FACTORY 4.1 RCT TITANIUM ANODIZED SL (Slip-On) with Carbon Cap delivers substantial power gains while centralising mass for improved handling. Constructed entirely from aerospace-grade titanium and carbon fibre, this slip-on exhaust balances high performance and superior durability. Precision manufactured in California, its blue anodised finish and carbon endcap further reduce weight and add a distinctive look for performance-driven Yamaha off-road riders.
Features
- Incorporates FMF Resonance Chamber Technologyª internally and externally for optimised performance.
- Compact, crash-resistant profile with short overall length.
- Aerospace-grade blue anodised titanium construction with carbon endcap for ultimate strength and weight reduction.
- Includes screen-type spark arrestor and 94dB quiet insert.
- Rapid Tuning System (RTS) for quick tuning adjustments.
- Exclusively designed for closed-course use.
Specifications
- Type: Slip-On
- Configuration: Single
- Construction: Titanium
- Finish: Blue Anodised
- Midpipe: Titanium
- Endcap: Carbon
- Spark Arrestor: Screen Insert (included)
- Quiet Insert: 94dB Insert (included)
- Weight: 8.3 lbs (3.77 kg)
- FMF Item ID: 044445
Vehicle Fitment
Yamaha
- WR450F (2019Ð2024)
- YZ450F (2018Ð2026)
- YZ450FX (2019Ð2025)