


1 / 3
FMF
4.1 RCT Exhaust with MegaBomb - Anodized Titanium
Part # 1820-1844
$1,224.99
Low Stock (1)
- 60-day returns
- Free shipping over $100
- Secure checkout
CA Prop 65 Warning: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
Confirmed fit for 5 motorcycle configurations across Kawasaki, model years 2019–2022.
| Years | Make & Model |
|---|---|
| 2022 Kawasaki | KX 450 F |
| 2019-2021 Kawasaki | KX450F |
| 2021 Kawasaki | KX450X |
- 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
Customer Reviews
No reviews yet — be the first to review this part.
Overview
The FMF 1820-1844: 4.1 RCT Exhaust with MegaBomb - Anodized Titanium. Confirmed fit for 5 motorcycle configurations across Kawasaki, model years 2019–2022. Ships from Greasemoto — a veteran-owned motorcycle parts shop in Fort Worth, TX — with free U.S. shipping on orders over $100.
More from FMF

FMF
FMF12-002
Muffler Packing - 2-Stroke
$10.99

FMF
1860-0828
Pillow Muffler Packing - 4-Stroke
$31.99

FMF
1861-0585
Wash Plug - 2-Stroke
$5.99

FMF
1820-0175
Factory Fatty Pipe
$329.99

FMF
1820-1869
Gnarly Pipe
$329.99

FMF
FMF011231
Puller Tool - Exhaust Spring - T-Handle - Black
$15.99

FMF
1820-0739
Powercore 4 Exhaust
$279.99

FMF
1821-2029
Q4 Muffler
$499.99
