Features:
- The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally.
- In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our 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 our exacting specifications and is manufactured 100% at our Southern California factory.
- NOTE: Will not pass 2025 FIM sound regulation
Fits:
Yamaha WR 250 F 2025
Yamaha WR 250 F 2024
Yamaha WR 250 F 2023
Yamaha YZ 250 F 70th Anniversary Edition 2026
Yamaha YZ 250 F 2026
Yamaha YZ 250 F 70th Anniversary Edition 2025
Yamaha YZ 250 F 2025
Yamaha YZ 250 F Monster Energy Racing Edition 2025
Yamaha YZ 250 F 50th Anniversary Edition 2024
Yamaha YZ 250 F 2024
Yamaha YZ 250 F Monster Energy Racing Edition 2023
Yamaha YZ 250 F 2023
Yamaha YZ 250 F 2022
Yamaha YZ 250 F Monster Energy Racing Edition 2022
Yamaha YZ 250 F Monster Energy Racing Edition 2021
Yamaha YZ 250 F 2021
Yamaha YZ 250 F 2020
Yamaha YZ 250 F 2019
Yamaha YZ 250 FX 2027
Yamaha YZ 250 FX 2026
Yamaha YZ 250 FX 2025
Yamaha YZ 250 FX 2024 America
Yamaha YZ 250 FX 2023 America
Yamaha YZ 250 FX 2022 America
Yamaha YZ 250 FX 2021 America
Yamaha YZ 250 FX 2020 America
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 |
| YAMAHA |
YZ |
2019 |
|
250 |
| YAMAHA |
YZ |
2019 |
|
250 |
| YAMAHA |
YZ |
2019 |
|
250 |
| YAMAHA |
YZ |
2019 |
|
250 |
| YAMAHA |
YZ |
2020 |
|
250 |
| YAMAHA |
YZ |
2020 |
|
250 |
| YAMAHA |
YZ |
2020 |
|
250 |
| YAMAHA |
YZ |
2020 |
|
250 |
| YAMAHA |
YZ |
2021 |
|
250 |
| YAMAHA |
YZ |
2021 |
|
250 |
| YAMAHA |
YZ |
2021 |
|
250 |
| YAMAHA |
YZ |
2021 |
|
250 |
| YAMAHA |
YZ |
2021 |
Monster Energy Racing Edition |
250 |
| YAMAHA |
YZ |
2022 |
|
250 |
| YAMAHA |
YZ |
2022 |
Monster Energy Racing Edition |
250 |
| YAMAHA |
YZ |
2022 |
|
250 |
| YAMAHA |
YZ |
2022 |
Monster Energy Racing Edition |
250 |
| YAMAHA |
YZ |
2022 |
|
250 |
| YAMAHA |
YZ |
2022 |
|
250 |
| YAMAHA |
YZ |
2023 |
Monster Energy Racing Edition |
250 |
| YAMAHA |
YZ |
2023 |
|
250 |
| YAMAHA |
YZ |
2023 |
Monster Energy Racing Edition |
250 |
| YAMAHA |
YZ |
2023 |
|
250 |
| YAMAHA |
WR |
2023 |
|
250 |
| YAMAHA |
YZ |
2023 |
|
250 |
| YAMAHA |
YZ |
2023 |
|
250 |
| YAMAHA |
YZ |
2024 |
50th Anniversary Edition |
250 |
| YAMAHA |
YZ |
2024 |
|
250 |
| YAMAHA |
YZ |
2024 |
|
250 |
| YAMAHA |
YZ |
2024 |
50th Anniversary Edition |
250 |
| YAMAHA |
WR |
2024 |
|
250 |
| YAMAHA |
YZ |
2024 |
|
250 |
| YAMAHA |
YZ |
2024 |
|
250 |
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