BMW PPK N55 tune
I have on order a 2013 135i with BMW's Performance tune, I just wanted to know if BMW use modified ECU settings or have their own version of a piggyback tune similar to JB3.
135i Coupe N55 PPK+JB4
X3 30d LCI
Last edited by TS135i; 01-05-2013 at 04:47 PM.