Google is pretty useful but I'll help here a bit. A bar is an atmosphere at sea level, being 100 kilopascals or approx 14.5 psi.

As such, "smash in 2 bar" means two atmospheres or 200 kpa or 29 psi. This is also, gauge pressure not absolute pressure. Absolute pressure equals atmospheric pressure plus gauge pressure. So, 2 bar equals an absolute manifold pressure of 300 kpa.

I think ...

__________________
[COLOR=Black]Liberty GT Spec B tuned 240 HP & 372 Nm at the hubs.[/COLOR] "Instead of banning high performance cars - ban low performance drivers"