The PowerPort is Turbosmart s most significant and highest-flowing blow-off valve, resetting the flow benchmark set by our popular and highly regarded RacePort Blow Off Valve and designed to be as light as possible to keep vehicle weight down. Its cutting-edge dual-chamber design is capable of advanced control strategies. It can be held open with a solenoid to aid turbo response and control during staging to give the best possible launch for drag racing, etc. Flowing Over 600CFM via its 2.53 (63mm inlet), this diaphragm-operated valve is built to flow vast amounts of air for High Horsepower Applications while providing marketing-leading response and boost handling. Twin Port Control allows for advanced control strategies. Some options include an onboard valve position sensor and part numbers specific to Supercharged Applications. However, it can also be used with a traditional single-port hookup.