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FMF
Factory 4.1 Muffler
Part # 1821-2023
$349.99
Low Stock (5)
- 60-day returns
- Free shipping over $100
- Secure checkout
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Confirmed fit for 45 motorcycle configurations across Kawasaki, model years 2008–2025.
| Years | Make & Model |
|---|---|
| 2008-2020 Kawasaki | KLX140L |
| 2021-2025 Kawasaki | KLX140R |
| 2021-2025 Kawasaki | KLX140R F |
| 2021-2025 Kawasaki | KLX140R L |
| 2008-2020 Kawasaki | KLX140 |
| 2017-2020 Kawasaki | KLX140G |
- Factory 4.1 muffler available in natural titanium or blue anodized titanium with titanium end caps
- The lightest mufflers available
- Superior power and performance - horsepower improved throughout the rpm range
- Feature exclusive proprietary Chamber Core technology
- Factory Forward Engineering centralizes mass, improves handling
- Made from premium quality American materials
- Customize with performance tuning inserts and spark arrestor module
- Meet AMA sound requirements on most models; inserts available for others
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Overview
The FMF 1821-2023: Factory 4.1 Muffler. Confirmed fit for 45 motorcycle configurations across Kawasaki, model years 2008–2025. 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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