Front brake – larger/stronger than series

Hello municipality, have been driving an Audi V8 D11 for years (1999). Some time ago I exchanged the UFOs for an HP2 (314). Now it is my will to expand them further and to install a larger/stronger system, possibly also from Audi or Porsche or from…… 323 saddles I already have to lie down, which I then take if nothing is going on. Is it also about a nice look with the brake saddles…. I have 17 inch rims, summer as well as winter and it should fit according to my info disks up to 347mm underneath. Can you help me there and give tips? Thank you very much. Greeting from the capital, Mario