the 3 gauges read boost, voltmeter and oil temp. Thanks yeah the 4dr is mine, the kit is a factory option tht came with the car. Haven't done much power wise. Apexi catback, wheels, eyelids and bonnet lip Got it for around 30k a year and half ago...u should be able to find a similar model for around 25k nowadays...mine is a 99 model tiptronic auto.