Factory 4.1 RCT Exhaust Silencer 09-16 Kawasaki KX 250 F - FMF 042290

The FACTORY 4.1 RCT Stainless Slip-On with Carbon End Cap utilises advanced FMF Resonance Chamber Technology™, both internally and externally, to deliver class-leading performance and durability. Engineered for racers seeking significant power improvements, this slip-on positions the muffler closer to the engine for better mass centralisation and reduced crash vulnerability. Constructed exclusively from aerospace-grade materials in Southern California, it combines robust build quality with exceptional weight savings, ideal for demanding off-road and motocross environments.

Features

• Notice: Closed Course Use Only


• Shortened design for improved crash protection and mass centralisation


• Utilises FMF's latest internal/external Resonance Chamber Technology™


• Aerospace-grade construction for premium durability


• Aluminium muffler with a carbon end cap for optimised strength-to-weight ratio


• Massive power gains across the RPM range


• FMF proprietary alloy blend for consistency and reliability


• Inclusive Rapid Tuning System (RTS) for convenient adjustments


• Includes spark arrestor screen insert and 94dB quiet insert


• Manufactured entirely in Southern California

Specifications

• Type: Slip-On


• Configuration: Single


• Muffler Material: Aluminium (Natural Finish)


• Midpipe Material: Stainless Steel


• Endcap: Carbon


• Weight: 5 lbs


• Spark Arrestor: Screen insert (included)


• Quiet Insert: 94dB insert (included)


• Item ID: 042290

Vehicle Fitment

Kawasaki

• KX250F (2009–2016)