What would happen if I put a small container of oxygen near my cars air intake?

I understand the danger of driving around with pure oxygen, but what if I used a small tank of O2 and let it “leek” near the air intake? Would that have the ,somewhat, effect of a supercharger? I mean I’m increasing the # Moles of O2, thus the engine’s efficiency. Not for everyday use, but for when I take it out racing.