Direct plug-in units include an analog speedometer and tachometer as well as digital readouts for speed/ rpm, voltmeter, cylinder head temperature (where equipped) and clock. Include performance readouts for 0-60 time and speed, quartermile time and speed, as well as high speed and rpm readout. Also include indicators for turn signal, high beam, oil pressure, low fuel, security, cruise on/ engaged, ABS and check engine. Add-on MBM modules are available to add boost, air pressure and. compass readings into the LCD display.