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The FMF Racing Yamaha YZ450F and WR/YZ450FX muffler is engineered with advanced FMF Resonance Chamber Technology™ both internally and externally, delivering optimized exhaust flow for enhanced performance. Constructed from aerospace-grade titanium, the muffler offers a lightweight yet durable design that withstands rigorous riding conditions. Its blue anodized finish with a carbon end cap not only provides a sleek aesthetic but also contributes to heat resistance and longevity. This muffler features a shorter overall length, making it less vulnerable to crash damage and aligning with Factory Forward Engineering principles to centralize mass closer to the engine for improved handling and balance. The design ensures rapid tuning capability with the included Rapid Tuning System (RTS), allowing riders to fine-tune exhaust characteristics quickly for different riding conditions and preferences. This product is manufactured 100% in Southern California, meeting strict quality standards and environmental regulations, including EPA compliance. Suitable for a range of Yamaha YZ and WR models from 2014 through 2018, the Factory 4.1 RCT SO Muffler enhances power across the entire RPM spectrum, providing massive gains whether you're racing or trail riding. The blend of premium materials and innovative engineering makes this muffler an ideal upgrade for serious riders seeking increased performance, durability, and style in their exhaust system.
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