FMF 250/450SX-F FAC 4.1 RCT SO Alum CF Tip
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Fast Shipping from Canadian Warehouses
Fast Shipping from Canadian Warehouses
📦 Delivered in 3–7 business days (Canada)
✔ No duties or cross-border delays
The Factory 4.1 RCT incorporates FMF's Resonance Chamber Technology™ both internally and externally
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
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
Massive Power gains throughout the RPM range.
Huge weight savings
RTS (Rapid Tuning System)
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