Phoenix Racing BMW N55 Port Injection Intake ManifoldAdd more fuel via port Injection while increasing airflow in your N55 BMW! When it comes to intake manifolds, it doesn't get any better than this. The Phoenix Racing intake manifold replaces your weak factory plastic N55 manifold with a direct fit high flow high strength aluminum manifold. Features port injection bungs located on the top of the manifold for easy access and optimal injector spray pattern, expansion vacuum ports perfect for larger