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FDY Performance

Factory 4.1 RCT Exhaust Silencer 20-20 Yamaha WR 450 F - FMF 044466

Factory 4.1 RCT Exhaust Silencer 20-20 Yamaha WR 450 F - FMF 044466

Regular price £756.35 GBP
Regular price Sale price £756.35 GBP
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The FMF Racing Factory 4.1 RCT Titanium Anodized Slip-On with Carbon Cap delivers cutting-edge exhaust performance through innovative Resonance Chamber Technology™. Designed for optimal power gains and reduced overall weight, the slip-on’s aerospace-grade titanium construction and compact length enhance durability and centralise mass for superior handling. Finished in blue anodised titanium and completed with a carbon end cap, this exhaust is manufactured to precise standards at FMF’s California facility for reliability in closed course competition.

Features

  • Incorporates FMF Resonance Chamber Technology™ internally and externally for advanced performance
  • Shorter overall length reduces crash susceptibility while centralising mass
  • Aerospace-grade titanium construction for strength and weight savings
  • Blue anodised titanium muffler with carbon end cap
  • Delivers significant power increases across the RPM range
  • RTS (Rapid Tuning System) for convenient tuning adjustments
  • Screen spark arrestor insert and 94dB quiet insert included
  • 100% manufactured in Southern California
  • Closed course use only

Specifications

  • Item ID: 044466
  • Type: Slip-On
  • Configuration: Single
  • Construction: Titanium
  • Finish: Blue Anodised
  • Midpipe: Titanium
  • End cap: Carbon
  • Spark arrestor: Screen insert (included)
  • Quiet insert: 94dB insert (included)
  • Weight: 8.4 lbs
  • Carb warning: Yes

Vehicle Fitment

Yamaha

  • WR450F (2020)

Cross-Reference OEM Numbers

  • See Features Tab -> Fitment for header compatibility

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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