My car is currently up at Southest Turbo in Dallas, GA. I had heard rumors that they had a bad wrap but when I searched them on the furom all the negatives were about them not answering the phone or getting parts out in a timely manner. I went up to the shop, talked to the owner and I felt confident enough to let them do my work. I've also heard good things about Wildcat Engines in Adel and Fred's Turbo Performance in Griffin (I think). Those are the only ones I know that deal in Turbo Buicks.