when you have the lap top plugged into the autronic ecu you get live readings from the ecu such as AFR ,EGT, intake temp, water temps, rpm etc etc, is there a way of permanantly displaying this on a screen in the car?

its a 94 wrx

 

You wont get afr or egt unless you have those setup, wideband ect...
Apart from buying an aftermaket dash a laptop or car pc is the only way to have that info in car.

I think there has been a few diy displays but i havn't herd anything.