Features:
- Developed 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 end caps make for the perfect balance of performance and strength
- Removable spark arrestor included
- NOTE: Will not pass 2025 FIM sound regulation
- To be used with stock head pipe.
Fit the models:
| KTM |
EXC 450 RACING |
2006 |
| KTM |
EXC 450 RACING |
2004 |
| KTM |
EXC 450 RACING |
2005 |
| KTM |
EXC 525 RACING |
2004 |
| KTM |
EXC 525 RACING |
2005 |
| KTM |
EXC 525 RACING |
2006 |
| KTM |
MXC 450 RACING |
2004 |
| KTM |
MXC 450 RACING |
2005 |
| KTM |
MXC 450 RACING |
2006 |
| KTM |
MXC 525 |
2006 |
| KTM |
MXC 525 |
2005 |
| KTM |
MXC 525 |
2004 |
| KTM |
MXC 525 RACING |
2004 |
| KTM |
MXC 525 RACING |
2006 |
| KTM |
MXC 525 RACING |
2005 |
| KTM |
SX 450 |
2006 |
| KTM |
SX 450 RACING |
2005 |
| KTM |
SX 450 RACING |
2004 |
| KTM |
SX 450 RACING |
2006 |
| KTM |
SX 525 |
2006 |
| KTM |
SX 525 |
2005 |
| KTM |
SX 525 |
2004 |
| KTM |
SX 525 RACING |
2004 |
| KTM |
SX 525 RACING |
2005 |
| KTM |
SX 525 RACING |
2006 |
| KTM |
XC 450 |
2007 |
| KTM |
XC 450 |
2006 |
| KTM |
XC 525 |
2007 |
| KTM |
XC 525 |
2006 |
| KTM |
XC-W 525 |
2007 |

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 |
| KTM |
EXC |
2004 |
|
450 |
| KTM |
EXC |
2005 |
|
450 |
| KTM |
EXC |
2006 |
|
450 |
| KTM |
MXC |
2004 |
|
450 |
| KTM |
MXC |
2005 |
|
450 |
| KTM |
MXC |
2006 |
|
450 |
| KTM |
SX |
2004 |
|
450 |
| KTM |
SX |
2005 |
|
450 |
| KTM |
SX |
2006 |
|
450 |
| KTM |
SX |
2006 |
|
450 |
| KTM |
XC |
2006 |
|
450 |
| KTM |
XC |
2007 |
|
450 |
| KTM |
EXC |
2004 |
|
525 |
| KTM |
EXC |
2005 |
|
525 |
| KTM |
EXC |
2006 |
|
525 |
| KTM |
MXC |
2004 |
Desert |
525 |
| KTM |
MXC |
2005 |
Desert |
525 |
| KTM |
MXC |
2006 |
Desert |
525 |
| KTM |
SX |
2004 |
|
525 |
| KTM |
SX |
2005 |
|
525 |
| KTM |
SX |
2006 |
|
525 |
| KTM |
XC |
2007 |
|
525 |
| KTM |
MXC |
2004 |
|
525 |
| KTM |
MXC |
2005 |
|
525 |
| KTM |
MXC |
2006 |
|
525 |
| KTM |
SX |
2004 |
|
525 |
| KTM |
SX |
2005 |
|
525 |
| KTM |
SX |
2006 |
|
525 |
| KTM |
XC |
2006 |
|
525 |
| KTM |
XC |
2007 |
|
525 |
| KTM |
XC-W |
2007 |
|
525 |