Anyone thought of....

Anyone thought about putting a larger turbo in a jetta tdi or any tdi for that matter? I was thinking about keeping the stock turbo and putting another in a larger turbo in a sequential setup. Since the stock turbo is so small and makes high tourqe at low rpm would it work to put in a larger turbo aswell and use it to make power at higher rpm? Is it possible and if so what kind of turbo should i use.

I don't know how you could modify the fuel input to match the air increase.