I have the aeroforce gauges, nice but pricey. The 2 gauges connect via a single cable to the obd2 port (provides power as well) and you can see all the obd2 parameters (boost, coolant temp, battery voltage, intake temp etc.). Each gauge displays 2 parameters in digital format. There are programmable visual alarms - can be used as a shift light, or oil pressure warning. Each gauge also accepts 2 analogue inputs, so you can connect up oil temp and oil pressure using the seperate sensors. They sell the sensor kits as well, they even have a wideband afr sensor. I use a stingray car security plate which replaces the tissue box holder in the FG. With the plate and the gauges it takes 10 mins to hook up. The gauges are not in the line of site, more a stealth sort of look, obviously you cant look at them while driving hard.