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As of November 30
powerful sound
High-flow collector significantly boosts torque
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raised rev limiter
Polaris Patriot 850 Boost Airbox Valve High Flow Ski-Doo-Summit-SP-X-850-2017 As of November 30Silber Turbos Airbox Valve Maximum Performance for Your Patriot Boost The Silber Turbos Airbox Valve has been years in the making, meticulously tested and fine tuned to deliver what your Polaris Patriot Boost engine needs mostuncompromised airflow and throttle response. While the factory reed valve performs well when new, it quickly degrades as the reed pedals wear out. Our innovative plunger style valve features a positive rubber seal, ensuring a
