Description
Features
- The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology both internally and externally
- In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their 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 their exacting specifications and is manufactured 100% at their Southern California factory
- Massive Power gains throughout the RPM range.
- Huge weight savings
- RTS (Rapid Tuning System)
| Position | Notes | |||
|---|---|---|---|---|
| 2014-2016 | Husqvarna | FE350 | - | - |
| 2014-2016 | Husqvarna | FE250 | - | - |
| 2015-2016 | Husqvarna | FE450 | - | - |
| 2009-2015 | KTM | 250 SX-F | - | - |
| 2009-2016 | KTM | 250 XCF-W | - | - |
| 2011-2015 | KTM | 350 XC-F | - | - |
| 2009, 2013, 2014, 2015 | KTM | 450 XC-F | - | - |
| 2009, 2010, 2012, 2013, 2014, 2015, 2016 | KTM | 450 XC-W | - | - |
| 2011-2015 | KTM | 350 SX-F | - | - |
| 2013-2016 | KTM | 500 XC-W | - | - |
| 2009-2010 | KTM | 400 XC-W | - | - |
| 2007-2015 | KTM | 450 SX-F | - | - |
| 2008 | KTM | 505 SX-F | - | - |
| 2009, 2011, 2013, 2014, 2015 | KTM | 250 XC-F | - | - |
| 2012-2016 | KTM | 350 XCF-W | - | - |
| 2009-2011 | KTM | 450 EXC | - | - |
| 2008 | KTM | 530 EXC-R | - | - |
| 2009-2011 | KTM | 530 EXC | - | - |
| 2008 | KTM | 530 XCR-W | - | - |
| 2012-2016 | KTM | 500 EXC | - | - |
| 2008-2009 | KTM | 505 XC-F | - | - |
| 2008 | KTM | 450 EXC-R | - | - |
| 2012-2014 | KTM | 500 XCF-W | - | - |
| 2012-2014 | KTM | 450 SX-F Factory Edition | - | - |
| 2009-2010 | KTM | 530 XC-W | - | - |
| 2008 | KTM | 450 XCR-W | - | - |
| 2013 | KTM | 450 SMR | - | - |
| 2013-2014 | Husaberg | FE501 | - | - |
| 2013-2014 | Husaberg | FE350 | - | - |
| 2013-2014 | Husaberg | FE250 | - | - |
