Active Autowerke BMW 135i | 335i N55 Charge Pipe

 

2011 - BMW E8x 135i with N55 engine

2011 - BMW E9x 335i with N55 engine

Active Autowerke is familiar with some of the unique issues that 2011 and newer N55 135i, 335i and 535i owners experience even running with the factory BMW boost.

 

The BMW N55 utilizes an all plastic construction for the factory charge pipe.

This charge pipe will eventually break, it is just a matter of time and when. Whenever the factory charge pipe break at the plastic seam, the engine immediately senses a huge vacuum leak where the engine ECU counters by sending the engine into a LIMP MODE condition.

Usually, the car's performance will feel dimished and lack luster as if running without a proper firing cylinder.  

 

The Active Autowerke N55 Charge Pipe is a designated product designed from inception to cure and eliminate this problem.

Constructed from all aluminum makes this charge pipe almost indestructible.

 

The connection to the throttle body is a CNC machined part to duplicate the factory fit as well making a tight, reliable seal.   

Added features were also implemented to further enhance the BMW N55 performance.  A large 3.00 inch all aluminum tubing would be the size used without any restrictions or reduced pipe sizes. This would enhance the airflow and peformance.  

 

Owners of BMW with the N55 engine understands that additional power can be reliably maintained with the use of Water/Methanol injection as an added feature. However, the N55 current does not have a reliable source to accomodiate the application of a Water/Metahol nozzles.

The Active Autowerke N55 Charge Pipe has a proper proviison for this specific application.  A boss with two separate ports are provided upstream where the injected mix of water/methanol can properly atomize before entering the engine. The thread depths for the water/metahnol nozzles are also checked to allow for a proper spray pattern without hitting the inside walls of the threaded holes.         

 

The BMW N55 engine does not utilize external diverter valves like it's N54 predecessor. Rather, the N55 diverter valves are built internally inside the engine turbo compressor housings and no in the charge pipe.  As such, there are no provisions to add larger BOVs.              

Key Features:

 

Consistent 3.00" tubing for increased performance   

Increase throttle response and decrease throttle lag

CNC machined throttle housing for a poper seal

Retains factory O-Ring seal 

Provision of raised boss for 2 Water/Methanol nozzles

BLACK powder coated for that OEM look

 

NOTE: The factory throttle clip is not included with the N55 Charge Pipe