[RudyH]

You are obviously fine as it is now. They are all standard bolt ons.

The next step is certainly a tune + injectors, and you have done everything until a bigger turbo. In theory, once you tune, you will want the bigger injectors anyway to take full advantage of what the stock turbo can provide you.

One more item too of consideration is the Grimmspeed boost controller the stock one isn't that great.