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.
- Highest-quality proprietary blend of alloy grade titanium
- Blue anodized titanium muffler with carbon end cap
- Massive power gains throughout the RPM range
- Rapid Tuning System (RTS)
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2016-2018 |
Husqvarna |
FC250 |
Base |
| 2016-2018 |
Husqvarna |
FC350 |
Base |
| 2016-2018 |
Husqvarna |
FC450 |
Base |
| 2017-2019 |
Husqvarna |
FE250 |
Base |
| 2017-2019 |
Husqvarna |
FE350 |
Base |
| 2017-2019 |
Husqvarna |
FE350S |
Base |
| 2017-2019 |
Husqvarna |
FE450 |
Base |
| 2017-2019 |
Husqvarna |
FE501 |
Base |
| 2017-2019 |
Husqvarna |
FE501S |
Base |
| 2017-2018 |
Husqvarna |
FX350 |
Base |
| 2017-2018 |
Husqvarna |
FX450 |
Base |
| 2016-2019 |
KTM |
250 EXC-F |
Base |
| 2016-2018 |
KTM |
250 SX-F |
Base |
| 2015-2016 |
KTM |
250 SX-F Factory Edition |
Base |
| 2016-2018 |
KTM |
250 XC-F |
Base |
| 2016-2019 |
KTM |
350 EXC-F |
Base |
| 2016-2018 |
KTM |
350 SX-F |
Base |
| 2016-2018 |
KTM |
350 XC-F |
Base |
| 2017-2019 |
KTM |
450 EXC-F |
Base |
| 2017-2019 |
KTM |
450 EXC-F Six Days |
Base |
| 2016-2018 |
KTM |
450 SX-F |
Base |
| 2015-2017 |
KTM |
450 SX-F Factory Edition |
Base |
| 2016-2018 |
KTM |
450 XC-F |
Base |
| 2017-2019 |
KTM |
500 EXC-F |
Base |
| 2017-2019 |
KTM |
500 EXC-F Six Days |
Base |
