There may be other ways to reduce your speed on your Ford Probe GT:
- Use cruise control.
- Replace the rear differential gear with one that has a higher numerical ratio, such as 4.10:1 or 4.56:1.
- Adjust the speedometer to read higher than the actual speed, to encourage driving slower.
- Remove performance mods, such as cold air intake and aftermarket exhaust.
- Avoid aggressive driving.