Brand new and exclusive TUNE IT! SAFE! the guide to secure tuning as an app. Here you will not only find the popular tuning guide in digital form, but can also quickly and easily with MR. SAFE T. chat. You also have the opportunity to take a 360 ° photo of your vehicle. Safety and exciting measurement results are the icing on the cake of the integrated dB meter.   The guide to safe tuning With the guide to secure tuning, the app offers a large tuning lexicon for all relevant changes to the vehic