It's highly unlikely that Subaru wheels will fit a 1994 Ford Probe without significant modifications, if at all. The bolt patterns (number of lug nuts and their spacing), wheel offset, center bore size, and hub diameter are almost certainly different between Subaru and Ford Probe vehicles. Even if the bolt pattern *happened* to match (which is very improbable), the other factors would likely prevent proper fitment.
You would need to find out the precise wheel specifications (bolt pattern, offset, center bore, diameter) for both the Subaru wheels *and* the 1994 Ford Probe to make any determination. Even then, you'd need an expert's opinion or testing before attempting to install them. Trying to force mismatched wheels onto a car is dangerous and can lead to wheel failure.
