DescriptionFMF YAMAHA YZ450F 18-26 ANODISED TITANIUM 4.1 RCT SLIP ON EXHAUSTFMF Yamaha YZ450F 18-26 Factory 4.1 RCT Slip-On ExhaustEnhance your Yamaha YZ450F with the FMF Factory 4.1 RCT Slip-On Exhaust, engineered for maximum performance and precision handling. Built using aerospace-grade titanium and carbon components, this exhaust delivers superior power gains throughout the RPM range while dramatically reducing weight.Incorporating FMF’s advanced Resonance Chamber Technology™ (RCT), the Factory 4.1 optimises airflow and enhances throttle response for a more aggressive and controlled ride. Its compact design positions the muffler closer to the motor, centralising mass and improving bike balance—perfect for motocross and off-road racing.Key Features:Blue anodised titanium muffler with carbon end capSignificant power gains across the entire RPM rangeLightweight design for improved handling and reduced fatigueRapid Tuning System (RTS) for easy performance adjustmentsManufactured 100% in Southern California to FMF’s exacting standardsPerfect For: Riders seeking high-performance slip-on exhausts for Yamaha YZ450F models (2018–2026), combining race-inspired engineering, lightweight construction, and superior durability.
