Drossing with power-enhancing exhaust?

Hey hey, since the police think she has to question everything on my bike, I want to know what it’s like. I have a Ducati Monster 796, which had a sc Project sports exhaust from the previous owner. This is performance-enhancing. Since I still have the A2, I let them throttle at the dealer and that was also taken away by the DEKRA. Now yesterday the police was there, because of another story, and he said that he believes that my bike over the 48p … because of the exhaust. Hope you can help me, xx Ulti