RIVA YAMAHA SVHO/SHO PERFORMANCE BLOW-OFF VALVE KITOur RIVA Yamaha SVHO SHO HKS Blow off Valve Kit improves supercharger reliability and performance by relieving unwanted pressure during off throttle operation. Reduces supercharger clutch & gear wear and eliminates heat soak in discharge tube. High strength silicone hose with integrated HKS valve installs easily in place of OEM elbow joint. Includes high quality HKS Super SQV (Super Sequential Blow off Valve) that features unique sequential valve
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