Description
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 Technologyª 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 Technologyª 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)

