Lancer Evo motor

i just looked at the new mitsubishi lancer Evo that my friend just bought and let me tell you its bad ass....i noticed that it loooks a lot like a DSM set up....i also heard that they use the same 4g63 motor in it...the question i have is....how does this thing have more horsepower than the 1g&2g eclipse cars.... I know the engine probably has better parts, but is the turbo bigger than ours as well?

ya 1g has 14b.. 2g has t25 turbo and evo has a big 16g turbo.... :D