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Free Shipping on orders over $69.99 to the continental 48 (Alaska & Hawaii orders, call 402-214-0706 to order).
All products have accurate in stock quantities listed, if it shows in stock it’s actually in stock!
Free Shipping on orders over $69.99 to the continental 48 (Alaska & Hawaii orders, call 402-214-0706 to order).
All products have accurate in stock quantities listed, if it shows in stock it’s actually in stock!
FMF 1820-1931 044460 Factory 4.1 RCT Exhaust System 4.1 RCT Exhaust with MegaBomb - Aluminum

FMF 1820-1931 044460 Factory 4.1 RCT Exhaust System 4.1 RCT Exhaust with MegaBomb - Aluminum

by FMF
Availability:
6 in stock, ready to be shipped
$1,074.99 - $1,074.99
$1,074.99
$1,074.99 - $1,074.99
$1,074.99

Features

  • The Factory 4.1 RCT incorporates FMF Resonance Chamber Technology™ both internally and externally
  • Shorter overall length that is less susceptible to crash damage and complementary to FMF's Factory Forward Engineering - moving the muffler closer to the motor to centralize mass
  • The Factory 4.1 RCT is constructed from only aerospace grade materials that meet FMF's exacting specifications and is manufactured 100% at their Southern California factory
  • Massive Power gains throughout the RPM range.
  • Huge weight savings
  • New RTS (Rapid Tuning System)
  • Includes MegaBomb header
  • Includes spark arrestor screen insert

Specs

Product Name Exhaust System
Type Full System
Pipe Material Stainless Steel
Riding Style Off-Road
Model Factory 4.1 RCT
Muffler Color/Finish Raw
End Cap Material Carbon Fiber
Muffler Material Aluminum
Units Each








2019-2023 Yamaha YZ 450 FX
2020-2022 Yamaha YZ 450 F

Fitment Disclosure

This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.