FMF Factory 4.1 RCT Yamaha YZ 450 F 2026 Not Homologated Full Line System

Boost your 2026 Yamaha YZ 450 F´s performance with the FMF Factory 4.1 RCT Full Line System. This race-bred, non-homologated exhaust delivers significant horsepower and torque gains across the RPM range for sharper throttle response and enhanced control. Experience superior handling and reduced fatigue thanks to its lightweight, aerospace-grade construction and FMF´s advanced Resonance Chamber Technology. Engineered for competition, the Factory 4.1 RCT offers a winning edge with its compact design, moving the muffler closer to the motor for improved mass centralization and reduced crash damage. Unleash your YZ´s full potential