Factory 4.1 RCT Exhaust Silencer 18-26 Yamaha 450 YZ WR F FX - FMF 044488

Combining advanced FMF Resonance Chamber Technology™ 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 Technology™ 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 (2019–2024)


• YZ450F (2018–2026)


• YZ450FX (2019–2025)