This is a Defi Racer Gauge boost gauge. It is 60Φ in size, white in color, and the part number is DF11506. Please search the part number online to confirm the display specifications, etc. This item became unnecessary because I replaced the oil pressure meter among my gauges and also changed the other meters. It is a used item that was working until it was removed. As for the wiring and sensors, I reused the old ones, so I will include the new wiring that the buyer purchased. The box is reused from a new purchase, so the part number is different. I think this product is not often available on the used market. I cannot answer questions about compatible vehicles or installation methods. Please make your own judgment before purchasing and make sure you are satisfied before you buy.