The guys over at Precision German Performance BMW were really great in my experience. From the diagnostic service they provided to the point where I picked my car back up from them they were truly great. I really liked the turnaround time that they had on my car, it was nice not having to wait too long for them to not only tell me what was wrong with my car, but to also fix that problem. The price was a little hefty but not too bad and that is why they did not get a five star in will recommend. Their work is really good though, so I would probably use them again.