BMW F2x F3x F87 M2 N55 - Active Autowerke Charge Pipe KitACTIVE AUTOWERKE BMW F CHASSIS N55 CHARGE PIPE 2012 BMW F3X 335i, 435i, M235i and M2 with N55 engine Active Autowerke is familiar with some of the issues that 2012 and newer N55 BMW 335i, 435i, M235i and M2 owners experience even running with the factory BMW boost. The BMW N55 utilizes an all plastic construction for the factory charge pipe. This charge pipe will eventually break, it is just a matter of time and when. Whenever the factory charge pipe