TURBOSMART IWG75 Twin Port - Nissan GTR R35 - 7PSITURBOSMART IWG75 Twin Port Nissan GTR R35 7PSI TS 0615 2073 Other Information: Turbosmart's new Twin Port Internal Wastegate Actuators bring a new dimension of control to the R35's twin turbo setup. Whereas traditional internal wastegate actuators utilise a single pressure port to operate the actuator, Turbosmart's Twin Port actuators feature a second pressure port to a separate chamber. The pressure differential between the two sealed champers