Or one of Paul Ruzzic's engine moniters that I use.
I have the series one verson of it and it gives readouts on oil pressure, oil temp, water temp, intake temp and boost as well as shift lights and high low warning light and siren for all the above.
The new one he is working on atm will do the whole 9 yards and then some includint gps for time splits, sector times etc with full logging capability and will cost way less than the imported stack dash and others.