Shopped around available DINAN specialists in my area before committing to an upgrade for my car. Andy and the folks at Bavarian were by far the most helpful and upfront, even without me committing to get the work done there. Once there, they took the time to answer all of my questions regarding my vehicle, even explaining to me why I shouldn't do certain things to the car. Easily could have had me come in to do these things and get my money, but paradoxically have earned my future business, and that of my fellow enthusiasts, by providing me with courteous, honest advice.