Added a turbo is not as simple as just bolting on a turbo and driving away.
I (and many members) have posted before on the intricacies involved here, but it always bears repeating.
The following assumes you know what a turbo actually does.....
The turbo will need a decent exhaust flow to spin it. This means better exhaust out pipes and manifold.
With the increased amount of air going in you will need more fuel.
More fuel is delivered by an upgraded fuel pump and put into the combustion chamber by larger injectors.
All of that is controlled by your ECU. Which will need replacing so it knows how to control turbo pressure and fuel intake. And it will need the correct sensors on your exhaust or air intake so it knows how much air/fuel to put in. The ECU will then need to be remapped to your engine.
This stronger explosion in the piston will drive your crank more (thus generating more power) but will also stress the engine. The head, the pistons, the rods, everything will need looking at. Will they be able to stand the extra power without cracking? Will the transmission and clutch handle the extra power?
And after all that you may not see much gain from such a small engine.
However, once you've made your engine kick out more power, and drive you faster, you may want to stop. And go around corners. This means bigger and better brakes and suspension. More cost.
There will be more but this gives you an idea of what you thinking about doing. It will be expensive and a tough learning curve if you are not totally skilled in these things (or just plain expensive if you are getting someone else to do it
).
Don't get me wrong, I'm all for people modding their cars. It gives you an insight into how they work and you will appreciate your car more for the work done. Just don't go in with your eyes closed