because its a straight bolt on!
come on dai a little bit of searching mate. you manage to ask all the most regular questions all in one week.
Yours currently has a k03 which has 12 blades and will lose its power in higher rev range.
If you opt for a k03s which is the exact same turbo but with a 8 blade spool, which can take higher rev range and keep the power, you will see more power ratio to money over a k04.
If you get a fmic, 4 bar fuel pressure regulator (fpr), downpipe, catback, TIP and remap stage 2 you'll see anywhere between 230hp and 250hp (dyno lottery) on the k03s that is.
That must be the last gift I give you. F
For future refference the search button is up top of every page