$55 shipped takes both of them. Boost gauge was used for two years. Fuel Pressure is still brand new in box.
They are both Blue/White 52mm gauges. Boost is 30-0-30. These cost $100 + shipping brand new, so this is basically half price.
Here's a link to what they look like
http://prosportgauges.com/blueWhite-fuel-pressure.aspx
http://prosportgauges.com/blue-mechanical-boost.aspx