Gauges help you monitor your cars vitals. Most people consider gauges an essential part of their cars diagnostic system and with good reason. The main gauge types you'll see are Boost, Air Fuel or Widebands, Oil or Fuel Pressure and Temp, Volts, and EGT. As with anything else automotive gauge technology is always changing and as new and exciting changes come about we will be sure to add them to our online catalog! Features such as peak/hold, playback, and fail safe technology, are just a few of the newest benefits you'll get from top brands like AEM, Prosport, Defi, Autometer, Glowshift, Zeitronix, and Innovate!