Description
The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, they 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 the exacting specifications and is manufactured 100% at FMF’s 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.
| Make | Model | Year |
|---|---|---|
| HUSABERG | FE250 | 13-14 |
| HUSABERG | FE350 | 13-14 |
| HUSABERG | FE501 | 13-14 |
| HUSQVARNA | FE250 | 14-16 |
| HUSQVARNA | FE350 | 14-16 |
| HUSQVARNA | FE450 | 15-16 |
| KTM | 250 SX-F | 09-15 |
| KTM | 250 XC-F | 09,11,13-15 |
| KTM | 250 XCF-W | 09-16 |
| KTM | 350 SX-F | 11-15 |
| KTM | 350 XC-F | 11-15 |
| KTM | 350 XCF-W | 12-16 |
| KTM | 400 XCW | 09-10 |
| KTM | 450 EXC | 09-11 |
| KTM | 450 EXCR | 08 |
| KTM | 450 SMR | 13 |
| KTM | 450 SX-F | 07-15 |
| KTM | 450 SXF FACTORY EDITION | 12-14 |
| KTM | 450 XCF | 09 |
| KTM | 450 XC-F | 13-15 |
| KTM | 450 XCRW | 08 |
| KTM | 450 XCW | 09-10 |
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