FDY Performance
Factory 4.1 RCT Exhaust Silencer 19-23 Kawasaki KX 450 F X - FMF 042369
Factory 4.1 RCT Exhaust Silencer 19-23 Kawasaki KX 450 F X - FMF 042369
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The FMF Racing Factory 4.1 RCT Stainless Slip-On with Carbon End Cap leverages advanced Resonance Chamber Technology™ to deliver exceptional power gains and reduced weight. Its compact design centralises mass by positioning the muffler closer to the engine, optimising both performance and handling. Precision-built in Southern California using aerospace-grade materials, this slip-on exhaust promises both durability and improved throttle response for competitive riders.
Features
- Incorporates FMF Resonance Chamber Technology™ internally and externally for optimal power output
- Shorter length reduces risk of crash damage and aids mass centralisation
- Aerospace-grade natural aluminium construction with carbon end cap
- Massive power gains throughout the RPM range
- Significant weight reduction over stock exhausts
- Includes the RTS (Rapid Tuning System) for quick adjustments
- Screen-type spark arrestor and 94dB quiet insert included
- Closed course use only
Specifications
- Type: Slip-On
- Configuration: Single
- Muffler Construction: Aluminium
- Finish: Natural
- Midpipe Material: Stainless Steel
- End Cap: Carbon Fibre
- Spark Arrestor: Screen insert (included)
- Quiet Insert: 94dB insert (included)
- Weight: 7.3 lbs (approx. 3.31 kg)
- Carb Warning: Not applicable
Vehicle Fitment
Kawasaki
- KX450F (2019–2023)
- KX450X (2019–2023)
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.
📞 07765534854 | ✉️ fdy@fdyperformance.com | 🌐 www.fdyperformance.com
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