Features:
- The ultimate power booster
- Improved bottom to mid-range power
- Less susceptible to damage than a longer header
- Effectively reduces sound output by as much as 1.5 dB
- Runs well with sound restricting mufflers
- NOTE: Will not pass 2025 FIM sound regulation
Fit the models:
| GAS GAS |
EC 350 F |
2021 |
| HUSQVARNA |
FE 350 |
2023 |
| HUSQVARNA |
FE 350 |
2020 |
| HUSQVARNA |
FE 350 |
2021 |
| HUSQVARNA |
FE 350 |
2022 |
| KTM |
XCF-W 350 |
2022 |
| KTM |
XCF-W 350 |
2021 |
| KTM |
XCF-W 350 |
2020 |

FMF - Flying Machine Factory - 1973 was founded by a twenty-two-year-old named Donny Emler, a typical Southern Californian who, like everyone else in the 1970s, found a passion for riding and racing dirt bikes. FMF is now one of the most recognizable logos in motocross. The main area of FMF is the highest quality exhaust systems for dirt bikes.
| Brand |
Model |
Year |
Name |
CC |
| HUSQVARNA |
FE |
2020 |
|
350 |
| HUSQVARNA |
FE |
2020 |
|
350 |
| KTM |
XCF-W |
2020 |
|
350 |
| KTM |
XCF-W |
2021 |
|
350 |
| HUSQVARNA |
FE |
2021 |
|
350 |
| GAS GAS |
EC |
2021 |
|
350 |
| HUSQVARNA |
FE |
2021 |
|
350 |
| KTM |
XCF-W |
2022 |
|
350 |
| HUSQVARNA |
FE |
2022 |
|
350 |
| HUSQVARNA |
FE |
2022 |
|
350 |
| HUSQVARNA |
FE |
2022 |
Rockstar Edition |
350 |
| HUSQVARNA |
FE |
2023 |
|
350 |