For sale is is a Defi BF (not Advance) boost gauge the measures in bar up to 2.0. It is the red faced gauge. The wiring is all there but the sensor is not. Also included is a Link control unit. It is the older version with the buttons on the front of the unit. $250 OBO shipped anywhere in the US. Both units came off of my Skyline when I was stationed in Japan and were in working order when removed.