Description
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.
Fitment:
| Make | Model | Year |
|---|---|---|
| GAS GAS | EX350F | 21-22 |
| GAS GAS | EX450F | 21-22 |
| GAS GAS | MC350F | 23 |
| GAS GAS | MC450F | 21-23 |
| HUSQVARNA | FC350 | 19-22 |
| HUSQVARNA | FC450 | 19-22 |
| HUSQVARNA | FC450 ROCKSTAR EDITION | 18-21 |
| HUSQVARNA | FX350 | 19-22 |
| HUSQVARNA | FX450 | 19-22 |
| KTM | 350 SX-F | 19-22 |
| KTM | 350 XC-F | 19-22 |
| KTM | 350 XC-F KAILUB RUSSELL | 21 |
| KTM | 450 SX-F | 19-22 |
| KTM | 450 SX-F FACTORY EDITION | 18-21 |
| KTM | 450 XC-F | 19-22 |
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