Experience unparalleled performance with the FMF Factory 4.1 RCT Anodized Competition Exhaust, designed specifically for the Yamaha YFZ450R. Featuring FMF's advanced Resonance Chamber Technology*, this exhaust delivers massive power gains across the RPM range while reducing overall weight. The innovative design improves durability by minimizing crash damage and strategically positioning the muffler closer to the motor for better mass centralization. Crafted from aerospace-grade materials and manufactured entirely in Southern California, this exhaust is engineered for enthusiasts seeking race-ready performance. Please note: This product is not legal for use in California on pollution-controlled vehicles and is intended for race use only. Features: * Massive Power Gains: Experience increased power throughout the RPM range for enhanced performance. * Lightweight Design: Enjoy significant weight savings for improved handling and speed. * Rapid Tuning System (RTS): Easily adjust your exhaust setup for optimal performance. * High-Quality Materials: Constructed from a proprietary blend of alloy-grade titanium, ensuring durability and performance. * Race Use Only: Designed for racing applications; not legal for use in California on pollution-controlled vehicles.