This is a used set of good condition Apexi gauges with controller. These gauges piggyback via the included wiring and communicate with the main controller via serial data cable. Very rare and very expensive when new. These cost over $2000 when I bought them new. There is a boost gauge, EGT gauge, Water Temp gauge, Fuel Pressure, and Oil pressure gauge. The sensors are missing except for the EGT gauge because they were left in the engine when it was sold. You can find the replacement sensors without too much trouble.
Apexi Gauges and controller, eBay Motors, Parts & Accessories, Car & Truck Parts