BMP N55 PERFORMANCE MANIFOLD (STOCK LOCATION)The Black Market Parts N55 PERFORMANCE INTAKE MANIFOLD (stock location) is designed to work with most all BMW's that came with N55 engines. This is a perfect way to add reliability while increasing air flow, adding port injection. Best of all our kit comes with ports to add direct port meth or direct port nitrous! Features & Benefits Increased Airflow Center flow port injection (fits all brand injectors) Stronger than stock plastic manifold Multiple