FDY Performance
Factory 4.1 RCT Exhaust Silencer 09-16 Kawasaki KX 250 F - FMF 042290
Factory 4.1 RCT Exhaust Silencer 09-16 Kawasaki KX 250 F - FMF 042290
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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)
FDY Performance – Engineered for riders who demand more.
At FDY Performance, we deliver precision-engineered motorcycle parts trusted by riders across the UK and beyond. Every component is tested for reliability, durability, and peak performance so you can ride harder, longer, and with confidence.
We’re not just a brand — we’re a movement built by riders, for riders. Whether you’re chasing podiums, upgrading your build, or maintaining your machine, FDY Performance keeps you on the road and at the top of your game.
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