A turbocharger turbine comprising: a turbine housing housing a turbine wheel, said turbine wheel rotatable about an axis of rotation, said housing including a divided volute adapted for receiving divided exhaust gas flows from an engine and maintaining separation of exhaust gas flows from different cylinders or cylinder groups of the engine; and a variable turbine geometry cartridge mounted in said turbine housing and comprising: a plurality of guide vanes arranged in said housing downstream of said divided volute, in angular separation around said axis of rotation in an axially extending vane space, each vane being pivotal about an associated pivot axis, forming nozzles of variable cross-section between adjacent vanes; a generally annular nozzle ring for supporting said vanes for pivoting about their respective said pivot axis, said nozzle ring forming a first axial limitation of said vane space; a disk with a central opening, said disk connected to and spaced from said nozzle ring at a predetermined axial distance to form a second axial limitation of said vane space, and characterized by at least a first and a second fixed separating blade provided between said nozzle ring and said disk for continuing separation of exhaust gas flows from said divided volute to said turbine wheel or to at least one of said guide vanes. a turbine housing housing a turbine wheel, said turbine wheel rotatable about an axis of rotation, said housing including a divided volute adapted for receiving divided exhaust gas flows from an engine and maintaining separation of exhaust gas flows from different cylinders or cylinder groups of the engine; and a variable turbine geometry cartridge mounted in said turbine housing and comprising: a plurality of guide vanes arranged in said housing downstream of said divided volute, in angular separation around said axis of rotation in an axially extending vane space, each vane being pivotal about an associated pivot axis, forming nozzles of variable cross-section between adjacent vanes; a generally annular nozzle ring for supporting said vanes for pivoting about their respective said pivot axis, said nozzle ring forming a first axial limitation of said vane space; a disk with a central opening, said disk connected to and spaced from said nozzle ring at a predetermined axial distance to form a second axial limitation of said vane space, and characterized by at least a first and a second fixed separating blade provided between said nozzle ring and said disk for continuing separation of exhaust gas flows from said divided volute to said turbine wheel or to at least one of said guide vanes. a plurality of guide vanes arranged in said housing downstream of said divided volute, in angular separation around said axis of rotation in an axially extending vane space, each vane being pivotal about an associated pivot axis, forming nozzles of variable cross-section between adjacent vanes; a generally annular nozzle ring for supporting said vanes for pivoting about their respective said pivot axis, said nozzle ring forming a first axial limitation of said vane space; a disk with a central opening, said disk connected to and spaced from said nozzle ring at a predetermined axial distance to form a second axial limitation of said vane space, and characterized by at least a first and a second fixed separating blade provided between said nozzle ring and said disk for continuing separation of exhaust gas flows from said divided volute to said turbine wheel or to at least one of said guide vanes.