FMF Factory-4.1 Exhaust System w/MegaBomb Aluminum/Carbon (045638)
- FACTORY 4.1 RCT FULL EXHAUST SYSTEM WITH MEGABOMB HEADER
- Innovative rear end cap features simple installation of tuning tip inserts or spark arrestor with the removal of four screws
- RCT (Resonance Chamber Technology) features a patented core shape that lowers decibels while maintaining maximum power output
- QuietCore 94 dB insert included
- Spark arrestor included in muffler
- 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
- Meets AMA and FIM sound requirements
- Made in the U.S.A.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2021-2023 | Gas Gas | EX450 F | |
| 2021-2023 | Gas Gas | MC450 F | |
| 2019-2022 | Husqvarna | FC450 | |
| 2018 | Husqvarna | FC450 Rockstar Edition | |
| 2020-2021 | Husqvarna | FC450 Rockstar Edition | |
| 2019-2022 | Husqvarna | FX450 | |
| 2019-2022 | KTM | 450 SXF | |
| 2018 | KTM | 450 SXF Factory Edition | |
| 2020-2021 | KTM | 450 SXF Factory Edition | |
| 2019-2022 | KTM | 450 XC-F | |