Factory 4.1 RCT Exhaust Silencer 12-15 Kawasaki KX 450 F - FMF 042292

Engineered for performance and durability, the FMF Factory 4.1 RCT Stainless Slip-On exhaust with Carbon End Cap is designed for riders seeking advanced exhaust technology and race-proven power gains. The system utilises exclusive FMF Resonance Chamber Technology™ to optimise exhaust flow and power delivery while achieving a lightweight, crash-resistant, and mass-centralised muffler profile. Manufactured in the USA using aerospace-grade materials, this slip-on offers a significant performance upgrade and striking looks for motocross enthusiasts.

Features

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


• Shortened overall length for reduced crash vulnerability and improved mass centralisation


• Constructed from aerospace grade natural aluminium with an elegant carbon end cap


• Includes Rapid Tuning System (RTS) for quick setup and adjustment


• Delivers massive power gains throughout the RPM range


• Provides substantial weight savings compared to stock exhausts


• Features a removable 94dB quiet insert and screen-type spark arrestor (both included)


• Closed course use only

Specifications

• Type: Slip-On


• Configuration: Single


• Construction: Aluminium


• Finish: Natural


• Midpipe: Stainless Steel


• End Cap: Carbon


• Spark Arrestor: Screen insert (included)


• Quiet Insert: 94dB insert (included)


• Weight: 5 lbs


• Notice: Closed course use only


• FMF Item ID: 042292

Vehicle Fitment

Kawasaki

• KX450F (2012–2015)