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formed and welded steel construction to provide real protection for your vehicle
uncoated polycarbonate
Robust turbine and compressor wheels for reliable operation
Precise 60mm outlet size ensures seamless fit and optimal flow
BOYESEN Power Reed Set for Yamaha 644 - Enhanced Performance with Boyesen Dual-Stage Reeds ford-explorer-1991-2010 formed and welded steel constructionPower Reed Set Yamaha Designed specifically for Yamaha models, the BOYESEN Power Reed Set (Part Number 644) offers advanced dual stage reed technology that significantly improves airflow and engine response. Laboratory flow analysis confirms that Boyesen dual stage reeds outperform standard reeds by allowing greater flow velocity across the entire range of operating pressures, resulting in increased power and throttle response. This upgrade is ideal