250/350/450SX-F TI F4.1 RCT SO AN/CF-TIP
- The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology™ both internally and externally
- RTS (Rapid Tuning System)
- Huge weight savings
- Massive Power gains throughout the RPM range.
- The Factory 4.1 RCT is constructed from only aerospace grade materials that meet their exacting specifications and is manufactured 100% at their Southern California factory
- In addition, FMF achieves a shorter overall length that is less susceptible to crash damage and complementary to their Factory Forward Engineering - moving the muffler closer to the motor to centralize mass
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