BMW N54 Charge PipeThe N54 is a reliable powerhouse thats capable of producing over 600 horsepower on stock internals, but it has its weak points. All that power requires almost 3x the boost the N54 was designed for, and while the engine can easily handle the boost, the parts that carry boost from the turbocharger to the engine may not be so strong. After nearly two decades, your BMWs stock charge pipe has become brittle and prone to catastrophic failure at any minute.