On a serious note an MBC (master boost controller) is at best something you don't want to use (seeing as you don't know what one is) at worst you'll end up with a knackered engine.
You can increase the boost by having the car mapped, but have a look around so you know how much work is needed before a map and also parts needed before a map.
My ARZ at stage one boosted to just over 1 bar, stage 2 just over 1.5 bar (23 psi)
You only need a few mods for a stage 1 but quite a few for stage 2