Cobb Tuning Charge Pipe - BMW 135i/1 Series M/335i (N54) Gauge this cap prevents the crankcase

this cap prevents the crankcase from pressurising by venting filtered air to atmosphere

This compact inline damper smooths out pressure fluctuations caused by injector cycling

Mercedes-Benz V-Class W447 (2014 -)

Nissan Skyline GT-T R34 (RB25DET Neo)

even when the pressure is on

Cobb Tuning Charge Pipe - BMW 135i/1 Series M/335i (N54) Gauge this cap prevents the crankcaseThe COBB BMW N54 Charge Pipe both increases flow and improves the reliability of your twin turbo BMW. The 3" mandrel bent aluminum pipe replaces the brittle factory plastic pipe which can fail under increased boost pressure. The increased piping size helps to reduce turbulence and maximize flow into the engine. Note: You may need to source a new O Ring (P N 13717568031) and possibly a new C Clip if yours are missing or damaged as they are not included