After the engines were completed, they were shipped back to GM, installed in the cars and then returned to PAS for testing and quality-control checks, before being offered to the public for sale.
[1] PAS also made other performance changes, which included the 1LE brake package originally engineered for Trans Am racecars.
The aluminum dual-piston front and single-piston rear calipers were borrowed from the Chevrolet Corvette.
[2] Throughout the project, Scott Kelly, who was the Engineering Liaison of PAS, was instrumental in the development and production of the TTA.
Scott served as the go-between for PAS and General Motors throughout the program and was responsible for all of the Trans Ams used during the month of May 1989, including the three actual pace cars.