Why do you need to upgrade the N55? The OEM BMW charge pipe is a ticking time bomb for any BMW N55 running higher than stock boost. Its plastic design will adequately hold the boost on stock settings, but on tuned cars it is prone to bursting. In addition, the OEM diverter valves are another component not designed for high-boost and can leak boost, limiting the power you can put down.  Don't wait until yours breaks to upgrade this critical component of your N55!

The ARM Motorsports N55 charge pipe is designed to handle the highest levels of boost. Constructed of 6061 aluminum, the ARM N55 charge pipe connects to the throttle body using a precision CNC machined connection which is secured by the OEM metal C-Clip.  It also includes an upgraded O-Ring for a secure and leak-free seal.

CONSTRUCTION

The ARM N55 Charge Pipe is engineered to optimize airflow between the intercooler and the throttle body.  To further increase the performance of your 135i, there are two hookups for either methanol or nitrous which come pre-capped. For reconnecting your factory TMAP sensor, there is a CNC machined flange for perfect fitment with new bolts to replace the course threaded factory screws.

The design of this charge pipe will fit the stock intercooler or any aftermarket intercooler that bolts up to the stock charge pipe.

IN THE BOX

• ARM N54 Charge Pipe
• Silicone Elbow
• Meth / Nitrous Plugs
• Hardware Kit