I have a 1988 930 turbo, running a bit rough and I would like a rolling road tune! I know the car does not have an ecu so I wondered how the car is tuned to get the best performance?
I live in Surrey, does anyone know anyone in my area that will not charge the earth but will do a good job?
I live in Surrey, does anyone know anyone in my area that will not charge the earth but will do a good job?