If your looking to get a screen that displays performance data - maybe look into UltraGauge. It can display 100 somthing different parameters from the ECU and its plug and play In all OBDII cars
Just to name a few:
Boost
Kw/HP
Nm/ftlbs
Ignition timing
Rpm
Voltage
Coolent temp
O2 sensor temp
Intake temp
Manifold pressure
Fuel trim
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