Features:
- FMF developed the PowerCore 4 to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is usable and compatible with every style of riding
- Aluminum construction and stainless steel Hi-Flo endcaps make for the perfect balance of performance and strength
- Removable spark arrestor included
- NOTE: Will not pass 2025 FIM sound regulation
Fit the models:
| YAMAHA |
YFZ 450 R |
2019 |
| YAMAHA |
YFZ 450 R |
2020 |
| YAMAHA |
YFZ 450 R |
2021 |
| YAMAHA |
YFZ 450 R |
2022 |
| YAMAHA |
YFZ 450 R |
2018 |
| YAMAHA |
YFZ 450 R |
2017 |
| YAMAHA |
YFZ 450 R |
2016 |
| YAMAHA |
YFZ 450 R |
2012 |
| YAMAHA |
YFZ 450 R |
2013 |
| YAMAHA |
YFZ 450 R |
2014 |
| YAMAHA |
YFZ 450 R |
2015 |
| YAMAHA |
YFZ 450 R |
2009 |
| YAMAHA |
YFZ 450 R |
2010 |
| YAMAHA |
YFZ 450 R |
2011 |
| YAMAHA |
YFZ 450 RSE |
2019 |
| YAMAHA |
YFZ 450 RSE |
2020 |
| YAMAHA |
YFZ 450 RSE |
2018 |
| YAMAHA |
YFZ 450 RSE |
2017 |
| YAMAHA |
YFZ 450 RSE |
2013 |
| YAMAHA |
YFZ 450 RSE |
2014 |
| YAMAHA |
YFZ 450 RSE |
2016 |
| YAMAHA |
YFZ 450 RSE |
2015 |
| YAMAHA |
YFZ 450 RSE |
2011 |
| YAMAHA |
YFZ 450 RSE |
2012 |
| YAMAHA |
YFZ 450 RSE |
2009 |
| YAMAHA |
YFZ 450 RSE |
2010 |
| YAMAHA |
YFZ 450 X |
2011 |
| YAMAHA |
YFZ 450 X |
2010 |
| YAMAHA |
YFZ 450 XBB |
2010 |
| YAMAHA |
YFZ 450 XSE |
2011 |

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 |
YFZ |
2009 |
|
450 |
| YAMAHA |
YFZ |
2009 |
|
450 |
| YAMAHA |
YFZ |
2009 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2010 |
|
450 |
| YAMAHA |
YFZ |
2010 |
Bill Ballance Edition |
450 |
| YAMAHA |
YFZ |
2010 |
|
450 |
| YAMAHA |
YFZ |
2010 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2011 |
|
450 |
| YAMAHA |
YFZ |
2011 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2011 |
|
450 |
| YAMAHA |
YFZ |
2011 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2012 |
|
450 |
| YAMAHA |
YFZ |
2012 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2012 |
|
450 |
| YAMAHA |
YFZ |
2012 |
|
450 |
| YAMAHA |
YFZ |
2012 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2012 |
|
450 |
| YAMAHA |
YFZ |
2013 |
|
450 |
| YAMAHA |
YFZ |
2013 |
|
450 |
| YAMAHA |
YFZ |
2013 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2013 |
|
450 |
| YAMAHA |
YFZ |
2013 |
|
450 |
| YAMAHA |
YFZ |
2013 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2014 |
|
450 |
| YAMAHA |
YFZ |
2014 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2014 |
|
450 |
| YAMAHA |
YFZ |
2014 |
|
450 |
| YAMAHA |
YFZ |
2014 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2015 |
|
450 |
| YAMAHA |
YFZ |
2015 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2015 |
|
450 |
| YAMAHA |
YFZ |
2015 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2016 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2016 |
|
450 |
| YAMAHA |
YFZ |
2016 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2017 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2016 |
|
450 |
| YAMAHA |
YFZ |
2017 |
|
450 |
| YAMAHA |
YFZ |
2017 |
|
450 |
| YAMAHA |
YFZ |
2017 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2018 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2018 |
|
450 |
| YAMAHA |
YFZ |
2019 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2019 |
|
450 |
| YAMAHA |
YFZ |
2020 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2020 |
|
450 |
| YAMAHA |
YFZ |
2021 |
|
450 |
| YAMAHA |
YFZ |
2021 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2022 |
Special Edition |
450 |
| YAMAHA |
YFZ |
2022 |
|
450 |