A turbocharger comprising: a compressor comprising a compressor housing and a compressor wheel mounted in the compressor housing and connected to a rotatable shaft for rotation therewith; a turbine comprising a turbine housing and a turbine wheel mounted in the turbine housing and connected to the rotatable shaft for rotation therewith; the turbine housing defining a first inlet and a separate second inlet into which separate first and second exhaust gas streams are respectively received; a center housing connected between the compressor housing and the turbine housing and containing bearings for the shaft; the turbine housing defining a meridionally divided scroll surrounding the turbine wheel, the first and second inlets joining with the meridionally divided scroll at a location defined as a 0° angular location with respect to a circumferential direction about the turbine wheel, the meridionally divided scroll extending in the circumferential direction from the 0° angular location substantially to a 360° angular location, the meridionally divided scroll defining a first scroll that receives the first exhaust gas stream from the first inlet, and a separate second scroll that receives the second exhaust gas stream from the second inlet; a nozzle leading from the meridionally divided scroll generally radially inwardly to the turbine wheel; and wherein the turbine housing defines a dividing wall that meridionally divides the first scroll from the second scroll, characterized in that the dividing wall, on any axial-radial cross-sectional plane through the turbine housing and passing through a rotational axis of the turbine wheel, has a thickness T and has a V-shape with an included angle β, the thickness T being measured at an average radius R avg of the dividing wall on said cross-sectional plane, wherein said thickness T evolves from a maximum value at the 0° angular location to a minimum value at the 360° angular location and wherein the included angle β evolves from a maximum value at the 0° angular location to a minimum value at the 360° angular location. a compressor comprising a compressor housing and a compressor wheel mounted in the compressor housing and connected to a rotatable shaft for rotation therewith; a turbine comprising a turbine housing and a turbine wheel mounted in the turbine housing and connected to the rotatable shaft for rotation therewith; the turbine housing defining a first inlet and a separate second inlet into which separate first and second exhaust gas streams are respectively received; a center housing connected between the compressor housing and the turbine housing and containing bearings for the shaft; the turbine housing defining a meridionally divided scroll surrounding the turbine wheel, the first and second inlets joining with the meridionally divided scroll at a location defined as a 0° angular location with respect to a circumferential direction about the turbine wheel, the meridionally divided scroll extending in the circumferential direction from the 0° angular location substantially to a 360° angular location, the meridionally divided scroll defining a first scroll that receives the first exhaust gas stream from the first inlet, and a separate second scroll that receives the second exhaust gas stream from the second inlet; a nozzle leading from the meridionally divided scroll generally radially inwardly to the turbine wheel; and wherein the turbine housing defines a dividing wall that meridionally divides the first scroll from the second scroll, characterized in that the dividing wall, on any axial-radial cross-sectional plane through the turbine housing and passing through a rotational axis of the turbine wheel, has a thickness T and has a V-shape with an included angle β, the thickness T being measured at an average radius R avg of the dividing wall on said cross-sectional plane, wherein said thickness T evolves from a maximum value at the 0° angular location to a minimum value at the 360° angular location and wherein the included angle β evolves from a maximum value at the 0° angular location to a minimum value at the 360° angular location.