A housing (410, 510, 610, 700, 800, 900) for a
turbocharger (400, 500, 600) is provided. The housing (410, 510, 610, 700, 800, 900) has an
impeller chamber (403, 503, 603), diffuser (450, 550, 650, 750, 850, 950) and scroll (420, 520, 620, 720, 820, 920) in fluid communication with each other. The diffuser (450, 550, 650, 750, 850, 950) can have a curved shape and / or a bend (455) in proximity to a tip (408, 508, 608, 609) of the
impeller (405, 505, 605). The curved shape can be defined by one or more radii of curvature (RC, RC1, RC2). The diffuser (450, 550, 650, 750, 850, 950) can extend in a radial direction that is non-orthogonal to the center line of the
turbocharger (400, 500, 600). The housing (410, 510, 610, 700, 800, 900) can be for a compressor section of the
turbocharger (400, 500, 600).