Planning to replace or have already upgraded your charge pipes? The MAD S55 J-Pipe completes your transition from the stock BMW plastic charge pipe to a full aluminum setup. BMW’s stock charge pipe is known to be prone to failure under increased pressure, but the MAD J-Pipe is crafted from durable aluminum, ensuring it won’t crack or break. Designed for optimal airflow, it’s built to perform and fit seamlessly in place of the original. The MAD J-Pipe also features a single meth bung, which can be sealed if not in use, giving you flexibility for future upgrades. Features: Enhanced airflow Durable aluminum construction (versus stock plastic) Includes one meth bung (sealable) Lifetime warranty on defects and fitment 90-day return period Ships within 1-2 business days Precision fit Fitment: 2019+ M2 Competition 2014+ M3 2015+ M4