P3 Digital gauges provide the highest level of OEM integration and color match offering more features than any other gauges in their segment. Starting at a price competitive to single feature old-school needle gauges, they offer unmatched feature to price ratio. All gauge models include an on-the-fly configuration menu for setting units (BAR/PSI for boost, and C/F MPH/KPH for multi-gauge values), as well as feature options, and ambient calibration. See www.p3cars.com/install for more details. NOTE: Standard gauge (without vent option) REQUIRES the Jetta style vents, which fit both Jetta and Golf GTI cars. If you have a Golf / GTI You must use the Jetta style vent as shown in the photo above, or choose the vent-preinstall option. TDI support is still in development, but will function for Boost, coolant, air, etc, but no egt. P3 Boost Gauge Boost and Vacuum with integrated 45psi sensor. Battery Voltage readings with quick-look and sleep-check. Optional Auto-Dim or Manual Dimmer Includes Digital Display, AuxBox w/Sensor, Vac Tubing, Wiring, Wire-taps, Zip-Ties DOES NOT INCLUDE OEM VENT