Yep, there are lots of obd2 bluetooth adapters you can use to display on your phone.
There is less need for independent gauges now that the ecu/obd port can give you the info straight for the engine sensors.
If you are looking for something more permanent, you could do a standard electric gauge from autometer, I would stick with a full sweep electric. Of course you will need to tap into the coolant system somewhere.
I personally use the plx dm100 multigauge which is hard wired to the obd port but has a standard 52mm gauge face. It can display up to 4 sensors at once. I am currently using boost, ect, ait.
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