Okay, not sure if this is stupid but can you guys state (apart from the full sick look of having gauges on your bonnet that arn't even connected) what each gauge does, and the benefits of knowing from inside your car what these gauges show...

Gauges like: Oil Pressure, Oil Temp, Water Temp, Fuel Temp, Fuel Pressure, Vacuum, Exhaust Temperature, Volt Meter ect ect....

thanks!