An acquaintance (from Munich) of mine, who also drives a TT with Eisenmann level 3, was stopped by the police in Munich. The car has a registration of the Eisenmann level 3 exhaust system. The policeman doubted the prescribed standing noise volume of the vehicle, furthermore he was probably informed that Eisenmann sold to customers exhaust systems that did not correspond to the, with which Eisenmann created the Tüv Gutachen. After a level measurement at the Munich Tüv came The expert said that it was common for manufacturers not to deliver what they are testing. The vehicle was confiscated and the driver’s license of my friend is in danger. Since I am driving level 3, I am now a little afraid, what do you think about it? What are the legal limits for standing noise or driving noise?