Replacement turbine housing for the N55's single BorgWarner turbocharger - the housing directs exhaust gas onto the turbine wheel to spin the compressor side. A ceramic-coated turbine side handles the exhaust heat, and this version comes with the electric wastegate actuator needed for factory-style boost control.

Fitment: BMW N55 3.0L engine (135i/M2, 335i/435i, 535i/640i, and other N55-powered models) - compatible with BorgWarner turbo part numbers 18539700009, 18539880009 and 18539880010.