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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 1821-1888 042369 Factory 4.1 RCT Slip-On Muffler Factory 4.1 RCT Muffler - Aluminum

FMF 1821-1888 042369 Factory 4.1 RCT Slip-On Muffler Factory 4.1 RCT Muffler - Aluminum

by FMF
Availability:
21 in stock, ready to be shipped
$599.99 - $599.99
$599.99
$599.99 - $599.99
$599.99

Features

  • The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology™ both internally and externally
  • In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their 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 their exacting specifications and is manufactured 100% at their Southern California factory
  • Massive Power gains throughout the RPM range.
  • Huge weight savings
  • RTS (Rapid Tuning System)

Specs

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








2019-2021 Kawasaki KX450F
2021 Kawasaki KX450X
2022 Kawasaki KX 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.