Has anyone on here increased the boost of the BMS Stage 1 in the x3 n55? Any problems that this might have caused? Currently I am running on 3.5 psi over stock + e30 mix and the sav drives well, but won't mind a little more torque running 4.25 psi (or more
) boost on e35 mix. I will only use 93 octane in the winter.