A turbine assembly comprising: a turbine wheel that comprises a base, a nose, blades, and a rotational axis that extends from the base to the nose; a shroud component that comprises an axis aligned with the rotational axis of the turbine wheel, an inner turbine wheel shroud surface, a lower axial face that extends into a volute, an upper axial face that extends to an outlet for exhaust downstream blades of the turbine wheel and an outer surface that extends between the lower axial face and the upper axial face; a turbine housing that comprises an axis aligned with the rotational axis of the turbine wheel, a lower axial face that defines an axial clearance with the lower axial face of the shroud component, an upper axial face that defines an axial clearance with the upper axial face of the shroud component and an inner surface that extends between the lower axial face and the upper axial face; and a seal that comprises an axis aligned with the rotational axis of the turbine wheel, a wall disposed between the outer surface of the shroud component and the inner surface of the turbine housing, and a lower lip extending radially outwardly from the wall at an obtuse angle, the lower lip disposed, at least in part, in the axial clearance between the lower axial face of the shroud component and the lower axial face of the turbine housing, characterized in that the wall of the seal comprises a bend that defines an upper wall portion axially above the bend and a lower wall portion axially below the bend wherein the location of the bend is such that an amount of surface area of the seal is contacted by the inner surface of the turbine housing and/or the outer surface of the shroud component. a turbine wheel that comprises a base, a nose, blades, and a rotational axis that extends from the base to the nose; a shroud component that comprises an axis aligned with the rotational axis of the turbine wheel, an inner turbine wheel shroud surface, a lower axial face that extends into a volute, an upper axial face that extends to an outlet for exhaust downstream blades of the turbine wheel and an outer surface that extends between the lower axial face and the upper axial face; a turbine housing that comprises an axis aligned with the rotational axis of the turbine wheel, a lower axial face that defines an axial clearance with the lower axial face of the shroud component, an upper axial face that defines an axial clearance with the upper axial face of the shroud component and an inner surface that extends between the lower axial face and the upper axial face; and a seal that comprises an axis aligned with the rotational axis of the turbine wheel, a wall disposed between the outer surface of the shroud component and the inner surface of the turbine housing, and a lower lip extending radially outwardly from the wall at an obtuse angle, the lower lip disposed, at least in part, in the axial clearance between the lower axial face of the shroud component and the lower axial face of the turbine housing, characterized in that the wall of the seal comprises a bend that defines an upper wall portion axially above the bend and a lower wall portion axially below the bend wherein the location of the bend is such that an amount of surface area of the seal is contacted by the inner surface of the turbine housing and/or the outer surface of the shroud component.