Picked up the stang from the dealer today with the new FRPP 3.73 gears installed. Of course it was raining so I could'nt get on it but I could still tell a difference, I think I'm going to be very happy on the first sunny day. Only problem was the check engine light came on during the short trip home. I called the dealer and they think its cause they adjusted the pcm for the new gear. They said they had Roush on the phone when they did it. Anyway they're going to take care of it.