[Ictus]

Sorry guys for the late reply. The main objective is to increase the performance of PPK. There are 5 way:
1) Combine PPK with cheap chipbox like JBD (that connects only to common rail)
2) Combine PPK with expensive chipbox like AC Schnitzer, Hartge (or cheaper alternative Steinbauer)
3) Combine JBD alike box + expensive chip box.
4) Combine cheap box that connects to boost sensor (like TMC box) + expensive box
5) Combine 3var + PPK.

My friend is going to buy Hartge box and PPK next year (spring).
Now he is making Havana M-package with 335i Perfromance exhaust on his F320d xDrive Havana Luxury.)
I will buy TMC box in january and PPK later.