The Motor had changes to it from the 95 to 99 the most noticable one was the change from EGR system to VCT and OBD-1 to OBD-2. I believe that the Focus uses a larger throttle body, and a different exhaust setup. Those two I don't believe are interchangable. Also there are plenty of other parts availible specificly for the Contour like the CTA Intake.