Mishimoto BMW N55 Charge Pipe (F2X F3X) 335i 435iBrand Mishimoto Part Number MMICP N55 11 Category Forced Induction Intercooler Pipe Kits Condition Brand New Original Manufacturer Packaging The N55 is a powerhouse, capable of producing over 600 horsepower on stock internals, but it has weak points. All that power requires almost 3x the boost the N55 was designed for. While the engine can handle it, your charge pipes may not be so strong. After over a decade, your BMWs stock charge pipes have become