I'm currently using Brembo Xtra, been like 6 or 7 months maybe. Actually i saw someone wrote in here that he has been using and it is good, so i got it with the part code he gave to me. It is P 30 056X (not P 30 056).
In comparsion with the stock ones, i can say that it needs some temperature to work properly. The first and second brake may perform like %60 or %70 but after that it is way better than stock. Tested on track also, still better than stock BUT it gets hot and performs less, depending on how hard you are using on the track. I'm running with the forge braided brake lines and RBF 700. Also it is made of a harsh material and you may need to replace the discs with every set of the pads. But the discs are cheap so no problem. For the daily use, i can definitely recommend it.
