Active Autowerke Charge Pipe – BMW 135i / 335i (N55)

OVERVIEW

The BMW N55 uses an all-plastic factory charge pipe that eventually breaks at the plastic seam, at which point the engine senses a large vacuum leak and the ECU drops the car into limp mode, leaving it flat and lacklustre. The Active Autowerke N55 charge pipe was designed from inception to cure that: all-aluminum construction makes it almost indestructible, and a CNC machined connection duplicates the factory throttle body fit for a tight, reliable seal. A raised boss adds two water/methanol injection ports upstream so the mix atomizes properly, with thread depths checked so the nozzles spray cleanly. Unlike the N54, the N55 has its diverter valves in the turbo compressor housing, so there is no provision for a larger BOV.

SPECS

• All-aluminum construction
• Consistent 3.00 inch tubing with no restrictions or reduced sections
• CNC machined throttle body housing for a proper seal
• Retains the factory BMW O-ring seal
• Raised boss with provision for 2 water/methanol nozzles
• Black powder-coated finish for an OEM look
• Increases throttle response and decreases throttle lag

PARTS INCLUDED

• Complete charge pipe as supplied by Active Autowerke; see the installation instructions for the full bill of materials.
• The factory throttle clip is not included with the N55 charge pipe.

TECH RESOURCES

Additional Parts Required

• Factory throttle clip — not supplied with this charge pipe. Reuse the clip from your original charge pipe, or source a replacement from BMW, before installation.
• Optional: water/methanol injection nozzles, if you intend to use the two provided injection ports. The ports are plugged and the pipe functions normally without them.
• Installer supplies basic hand tools; no cutting or welding is required.

Installation

• Active Autowerke does not publish a downloadable installation manual for this charge pipe in its instruction library.
• Active Autowerke installation instruction library

Notes

• Select the variant that matches your model, as the coupe, sedan and convertible pipes differ. Fitment applies to US-model cars only; confirm fitment with Speed Logic before ordering.

PART NUMBER

• 15-001

VEHICLE APPLICATIONS