The Swedish company BSR offers the so-called PPC tuning. The tuning probably takes place via the OBD interface under the steering wheel.http://www.bsrab.se/se/start_prod.html The highlight of the whole is, you get a kind of decoder and can play the tuning yourself and install the original software again whenever necessary – the whole can be used as often as possible. The tuning is distributed via MR Sweden or directly at BSR. If one of you already has experience with the software of BSR (proven performance, performance characteristics compared to or Heico) and especially with the PPC tuning? For me, the story sounds really good or are there differences in tuning, whether I change the chip directly or just play a new software? The manufacturer updates run after the same way, the question is only good the software of BSR Gruß Guido