Has anyone ever done this??? It's most likely the most difficult swap you can do computer wise as Ford is not happy your doing it. That is, trying to fit the Premium Track App Cluster in a Base GT. If I can believe the Copart pictures, the Track App Cluster can come in both the GT and 6cyl cars with or without Brembo brakes. They can run between $200 and $400 on Ebay with most mileage around 50000 miles. The dealer charges $500 for a new one and you MUST have a core to turn in or another $300 is charge. The Cluster also must be ordered by the VIN. Getting a VIN is not hard as every Mustang on Copart has a picture of the VIN sticker and every Mustang on Copart is totaled.