I have this gauge but it came installed with the truck. No additional parts were included, I would like to change the Face Plate from AFR to InHg/PSI. I called AEM customer service and they do not carry spares. So if you have a spare InHg/PSI face plate in either black or white I would be interested in purchasing it. The attached picture is of the gauge that I have. Also if you have the Black Gauge ring I would be interested in that as well.