Factory 4.1 RCT Exhaust Silencer 20-20 Yamaha WR 450 F - FMF 044464

Engineered for riders seeking superior performance and state-of-the-art design, the FMF Racing Factory 4.1 RCT Stainless Slip-On with Carbon End Cap is built using aerospace grade materials for exceptional durability and weight savings. Incorporating FMF’s latest Resonance Chamber Technology™ both internally and externally, this slip-on delivers massive power gains across the RPM range, with a shorter overall length and forward engineering to centralise mass for enhanced handling. Assembled at FMF's Southern California facility, this slip-on system combines natural aluminium with a carbon end cap to deliver a refined appearance and competitive edge.

Features

• Incorporates FMF Resonance Chamber Technology™ for improved throttle response and power delivery


• Designed with Factory Forward Engineering, positioning the muffler closer to the engine for optimised mass centralisation


• Constructed from a high-quality proprietary blend of alloy grade titanium to FMF’s strict standards


• Available with a natural aluminium body and carbon end cap


• Delivers significant weight reduction over stock exhaust systems


• Includes new RTS (Rapid Tuning System) for seamless installation and adjustments


• Complete with removable screen-type spark arrestor and 94dB quiet insert for versatile tuning


• Notice: Closed Course Use Only

Specifications

• Item ID: 044464


• Type: Slip-On


• Configuration: Single


• Construction: Aluminium


• Finish: Natural


• Midpipe: Stainless Steel


• End Cap: Carbon


• Spark Arrestor: Screen Insert (included)


• Carb Warning: Yes


• Quiet Insert: 94dB Insert (included)


• Weight: 9.3 lbs

Vehicle Fitment

Yamaha

• WR450F (2020)

Cross-Reference OEM Numbers

• 044464