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.
-Available in Natural Aluminum Muffler with Carbon End Cap
-Massive Power gains throughout the RPM range.
-Huge weight savings
-New RTS (Rapid Tuning System)
-FMF uses the highest quality proprietary blend of alloy grade titanium made especially to our standards.
-See Features Tab -> Fitment for header compatibility
Notice: Closed Course Use Only
Item ID: 045594
Type: Slip-On
Configuration: Single
Const: Aluminum
Finish: Natural
Endcap: Carbon
Spark Arrestor: Screen Insert (included)
Carb Warning: no
Quiet Insert: 94dB Insert (included)
Weight: 4.3 lbs.
Make | Model | Year |
---|---|---|
HUSQVARNA | FC 250 | 16-18 |
HUSQVARNA | FC 350 | 16-18 |
HUSQVARNA | FC 450 | 16-18 |
HUSQVARNA | FE 250 | 17-19 |
HUSQVARNA | FE 350 | 17-19 |
HUSQVARNA | FE 450 | 17-19 |
HUSQVARNA | FE501 | 17-19 |
HUSQVARNA | FX 350 | 17-18 |
HUSQVARNA | FX 450 | 17-18 |
KTM | 250 EXC-F | 17-19 |
KTM | 250 SX-F | 16-18 |
KTM | 250 SX-F FACTORY EDITION | 15-17 |
KTM | 250 XC-F | 16-18 |
KTM | 350 EXC-F | 17-19 |
KTM | 350 SX-F | 16-18 |
KTM | 350 XC-F | 16-18 |
KTM | 450 EXC-F | 18-19 |
KTM | 450 EXC-F SIX DAYS | 17-19 |
KTM | 450 SX-F | 16-18 |
KTM | 450 SX-F FACTORY EDITION | 15-17 |
KTM | 450 XC-F | 16-18 |
KTM | 500 EXC-F | 17-19 |