FMF
Factory 4.1 RCT Slip-On Muffler - Stainless Steel/Aluminum with Carbon Fiber End Cap - KX450F/X
Part # 1821-1888
$599.99
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Confirmed fit for 7 motorcycle configurations across Kawasaki, model years 2019–2023.
| Years | Make & Model |
|---|---|
| 2022 | Kawasaki KX 450 F |
| 2019-2021 | Kawasaki KX450F |
| 2021-2023 | Kawasaki KX450X |
- RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output
- Internal ducts in the chambers of the RCT system increase internal volume for improved exhaust flow, resulting in power gains throughout the entire range of power
- FMF's Factory Forward Engineering centralizes mass and is less prone to crash damage
- Innovative rear end cap features simple installation of tuning tip inserts or spark arrestor with the removal of four screws
- Compatible with stock header or FMF header
- Meets AMA and FIM sound requirements
- QuietCore 94 dB insert included
- Spark arrestor included in muffler
- Made in the USA
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Overview
The FMF 1821-1888: Factory 4.1 RCT Slip-On Muffler - Stainless Steel/Aluminum with Carbon Fiber End Cap - KX450F/X. Confirmed fit for 7 motorcycle configurations across Kawasaki, model years 2019–2023. Ships from Greasemoto — a veteran-owned motorcycle parts shop in Fort Worth, TX — with free U.S. shipping on orders over $100.
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