wow... i haven't seen one person talk about tuning the car ....
this site is full of FI noobs man.
No one is worried about A/F levels while pushing up the boost ? MBC and EBC ain't gonna do s*** in the MS3. Its all controlled by the ECU, and without some type of scanning tool/piggy back/stand alone, ur playing russian roulette. Before turning up the boost, why don't you tune the mods you already have and spend your money on a good software to tune with ? Too much boost (without being properly tuned) will only hurt you more in the end.
and Craighjr, boost spike is NOT a good thing.
EDIT: And to add. Stock Boost in the MS3.
1st gear - 9 lbs.
2nd gear - 11 lbs.
3-6th gear - just under 16 lbs.
you guys need to do research on the car you all own.