Mac Valve 4 Port Electronic Boost Control Solenoid - BARE UNIT / NO FITTINGS - MAC4PORT Air Oil Separators The factory hose that runs

The factory hose that runs from your car's upper radiator hose bypass fitting to the expansion tank metal return line runs over the top of the intake scoop

ensuring precise alignment and a perfect fit

1 Turbo/GT2 Larger

Starting with 6061 billet aluminum blank

these are referred to as gas springs

Mac Valve 4 Port Electronic Boost Control Solenoid - BARE UNIT / NO FITTINGS - MAC4PORT Air Oil Separators The factory hose that runsThis part number is the BARE UNIT. Fittings and filter are NOT included! The MAC 46 Series is a high flow direct solenoid operated 4 way poppet valve. It features a short stroke solenoid with oval armature, a balanced poppet and conical seats. These features translate into high shifting forces, fast consistent response times, high flow in a small package and long life. They are pressure tested to 100 PSI.