i got it on Amazon. I came from a first generation mazda 3 which had a temperature gauge on the dash, when i switched to the third gen I was disappointed to see they got rid of the temperature gauge in favor of the simple blue/red temperature light to indicate low/high temperatures. On my specific gauge, i configure it to show oil temp in the middle, coolant temp in the bottom left, and IAT in the bottom right as I run an aftermarket intake and like to monitor heat soak when it’s hot out. The gauge itself can monitor numerous metrics and plugs right into your OBD-2 port. Oil/coolant/intake temps, throttle input, gas mileage, ignition timing, engine load, battery voltage, etc. Basically anything your car’s computer reads, the gauge can display. Not to mention it also doubles as a engine trouble code reader and clearer. All of that for the low low price of about $45. I’ll drop the link here: AUTOOL X60 OBDII KMH MPH Digital Speedometer HUD Multi Meter Turbo Boost Pressure Meter Overspeed Alarm OBD2 Scanner for 12V Petrol & Diesel Vehicles https://www.amazon.com/dp/B07CHDKN4C/ref=cm_sw_r_cp_api_glt_fabc_W2NCZAGMJ9JZ0XPCQ65P
Cheap ones read vac. The intake has no vac lines on an ecoboost it’s through a sensor. You have to plumb one in. Or get an obd2 boost gauge.
You have to add it to the engine.
Or get one of these.
https://www.amazon.com/AUTOOL-Speedometer-Pressure-Overspeed-Vehicles/dp/B07CHDKN4C
Which use the obd2 port.