N55 Charge Pipe MAD BMW M135 M235 M2 335 435 RWD ONLYThe stock BMW N55 charge pipe is made from plastic and is prone to failure under increased boost pressure. Its only a matter of time before the factory charge pipe cracks or breaks especially on tuned vehicles. The MAD N55 Charge Pipe is constructed from durable aluminum for improved strength, reliability, and airflow while maintaining OEM like fitment. Designed as a direct replacement, it retains the factory BMW C clip and O ring system to ensure a