- Highest-quality proprietary blend of alloy grade titanium
- Blue anodized titanium muffler with carbon end cap
- Massive power gains throughout the RPM range
- Rapid Tuning System (RTS)
The FMF Racing Factory 4.1 RCT exhaust system is engineered for high-performance Yamaha YZ450F models from 2023 to 2025, including special editions like the Monster Energy Yamaha Racing Edition and 50th Anniversary Edition. Constructed entirely from aerospace-grade titanium, this muffler combines durability with lightweight design to enhance your motocross experience. Featuring FMF Resonance Chamber Technology™, both internally and externally, it maximizes power output across the entire RPM range. The shorter overall length improves crash resistance and aligns with Factory Forward Engineering principles by relocating the muffler closer to the engine to better centralize mass, offering improved handling and balance on the track. The blue anodized titanium muffler with a carbon end cap not only provides a sleek aesthetic but also contributes to weight reduction and heat dissipation. The factory-tuned design ensures massive power gains, making this exhaust system ideal for riders seeking competitive edge and reliable performance. The Rapid Tuning System (RTS) allows for quick adjustments, optimizing performance for different riding conditions and preferences. Manufactured exclusively at FMF's Southern California facility, this system meets rigorous quality standards and promises longevity under demanding riding conditions. Whether you're racing or trail riding, the FMF Factory 4.1 RCT offers an exceptional upgrade that enhances your Yamaha YZ450F's power, agility, and overall performance.
Features:
- Constructed from aerospace-grade titanium for durability and weight savings
- Includes FMF Resonance Chamber Technology™ for increased power and performance
- Blue anodized titanium muffler with carbon end cap delivers style and heat dissipation
- Shorter overall length improves crash resistance and handling
- Relocates muffler closer to the engine to centralize mass in line with Factory Forward Engineering
- Massive power gains throughout the RPM range for competitive riding
- Rapid Tuning System (RTS) enables quick performance adjustments
