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 with Carbon Fiber End Cap
-Massive Power gains throughout the RPM range.
-Huge weight savings
-New RTS (Rapid Tuning System)
-FMF uses the highest quality proprietary blend stainless steel made especially to our standards.
| Make | Model | Year |
|---|---|---|
| YAMAHA | WR450F | 24 |
| YAMAHA | YZ450F | 23-24 |
| YAMAHA | YZ450FX | 24 |
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