Hello … although I am now a driver of my 6th SAAB, currently a 9-3 TTiD, convertible vector with automatic transmission, I have no experience with the HIRSCH chip tuning…. (The vehicle was only converted to a double exhaust system from HIRSCH at the beginning at my dealer. At the moment I think about the increase in performance announced by HIRSCH from 180 to 200 diesel hp and ask me if the increase in performance (chip tuning) are registered with the TÜV or the insurance company erung must be reported ? Already in advance I thank you very much for your / your answer !