Cobalt Gauges feature Blue Backlit - LED lighting 12V.
Air/Fuel Ratio Meter. Works with most OEM and aftermarket oxygen sensors. Never used. $50
More info here: http://www.egauges.com/vdo_mult3.asp...&Series=Cobalt
Boost Auto Meter model 6103
2-1/16" Mechanical Full Sweep Never used. $50
More info here: http://www.jegs.com/i/Auto-Meter/105...42#moreDetails
Not a clue what these things are for!! Guaranteed they don't make you go faster. (Some one paid a debt with this stuff).