Just got mine done this week along with my factory maintenance and front rotors replaced. I didn't even bring my letter in, they just asked "Did you get a letter?" I said yep and away they went. Took them a day to do everything. I wonder whats up with the seized cooler fittings. They replaced my left cooler as well with the recall. Love dealing with these guys and they wash the car as well. No VIN update for me due to SC tune.