FMF Factory 4.1 RCT Slip-On Muffler - Kawasaki KX450F / KX450X - Anodized Titanium (2019-2022)
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
- Secure checkout — Pay in 4 available
Fits: 2019–2021 Kawasaki KX450F, 2021 Kawasaki KX450X, 2022 Kawasaki KX450F
WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov
Features
- Incorporates FMF's Resonance Chamber Technology™ both internally and externally for maximum power gains across the full RPM range
- Shorter overall length reduces susceptibility to crash damage and centralizes mass closer to the motor (Factory Forward Engineering)
- Constructed entirely from aerospace-grade materials — manufactured 100% at FMF's Southern California factory
- Massive power gains throughout the RPM range with huge weight savings
- RTS (Rapid Tuning System) included
Specifications
| Type | Slip-On |
| Model | Factory 4.1 RCT |
| Pipe Material | Titanium |
| Muffler Material | Titanium |
| Muffler Finish | Anodized Blue |
| End Cap Material | Carbon Fiber |
| Unit | Each |
| Riding Style | Off-Road |
| Weight | 7.13 lbs |
| Dimensions | 23.94 x 12.17 x 5.47 in |
| Manufacturer SKU | 042371 |
Fitment
| Years | Make | Model |
|---|---|---|
| 2019–2022 | Kawasaki | KX450F |
| 2021 | Kawasaki | KX450X |
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
