Vacuum/Boost Port Fitting 4mm

Most BMW engine applications rarely have an easily accessible area to tap for vacuum/boost pressure.  The Vacuum/Boost Port Fitting is made to add a vacuum or boost (pressure) port to any of our charge pipes that have a 1/8" NPT bung.  This allows you to attach a 4mm line for easy access to a clean vacuum/boost pressure source.  Typically uses include boost gauges, dataloggers and dyno logs.