Seller notes

This fits 'CRF450X' models ONLY!*Does NOT FIT CRF450R, CRF450RL, OR CRF450RX MODELS! 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 sp...

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