Extra strong sheet steel Untreated surface Full sound Better power delivery Combination with FMF silencer recommended
Rev up your ride with the FMF FACTORY FATTY EXPANSION CHAMBER, the ultimate upgrade for your dirt bike! Designed to boost performance and enhance your riding experience, this expansion chamber is a must-have for any serious rider. Whether you're hitting the tracks or exploring off-road, the Factory Fatty is your ticket to a more exhilarating ride.
Enhanced Durability: Crafted from high-quality materials to withstand the toughest riding conditions.
Optimized Performance: Engineered to improve throttle response and increase horsepower throughout the power range.
Classic Motocross Aesthetics: The raw, untreated look not only provides robustness but also adds a rugged, competitive edge to your bike’s appearance.
Seamless Integration: Designed for easy installation with an ideal fit to seamlessly blend with your bike's existing setup.
Race-Proven Technology: Developed using insights from top professional riders and race-tested for optimum performance.
Make the switch to the FMF FACTORY FATTY EXPANSION CHAMBER and experience the thrill of enhanced power and unbeatable performance where it counts! Upgrade today and unleash the full potential of your dirt bike!
⚠️ WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm.
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