A valve assembly for controlling exhaust gas flow to a turbine housing interior of a dual volute turbocharger , said valve assembly comprising: a first valve member disposed about and extending along an axis (A) between a first end and a second end spaced from said first end , with said first valve member defining a valve interior between said first and seconds ends , and with said first valve member movable between a first position, a second position, and a third position for controlling exhaust gas flow to the turbine housing interior of the dual volute turbocharger ; a valve shaft partially disposed in said valve interior and coupled to and extending from said first end of said first valve member , with said valve shaft extending along said axis (A) from said first end of said first valve member for moving said first valve member between said first, second, and third positions; a second valve member having a base coupled to and disposed about said valve shaft and a projection extending from said base and about said valve shaft into said valve interior , with said second valve member movable between a closed position and an open position for controlling exhaust gas flow to the turbine housing interior of the dual volute turbocharger , wherein when said second valve member is in said closed position, the valve shaft is movable along said axis (A) relative to the second valve member in order to move the first valve member between the first and second positions; and a biasing member disposed in said valve interior and about said valve shaft , with said biasing member configured to bias said first valve member into one of said first and second positions when said second valve member is in said closed position. a first valve member disposed about and extending along an axis (A) between a first end and a second end spaced from said first end , with said first valve member defining a valve interior between said first and seconds ends , and with said first valve member movable between a first position, a second position, and a third position for controlling exhaust gas flow to the turbine housing interior of the dual volute turbocharger ; a valve shaft partially disposed in said valve interior and coupled to and extending from said first end of said first valve member , with said valve shaft extending along said axis (A) from said first end of said first valve member for moving said first valve member between said first, second, and third positions; a second valve member having a base coupled to and disposed about said valve shaft and a projection extending from said base and about said valve shaft into said valve interior , with said second valve member movable between a closed position and an open position for controlling exhaust gas flow to the turbine housing interior of the dual volute turbocharger , wherein when said second valve member is in said closed position, the valve shaft is movable along said axis (A) relative to the second valve member in order to move the first valve member between the first and second positions; and a biasing member disposed in said valve interior and about said valve shaft , with said biasing member configured to bias said first valve member into one of said first and second positions when said second valve member is in said closed position. <EOS>