Description
Features
- 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)
| Position | Notes | |||
|---|---|---|---|---|
| 2019-2022 | KTM | 450 SX-F | - | - |
| 2018-2020 | KTM | 450 SX-F Factory Edition | - | - |
| 2019-2022 | KTM | 450 XC-F | - | - |
| 2021-2023 | Gas Gas | MC 450F | - | - |
| 2021-2023 | Gas Gas | EX 450F | - | - |
| 2018-2022 | Husqvarna | FC450 | - | - |
| 2019-2022 | Husqvarna | FX450 | - | - |
