1. Downpipe
2. Turbo Manifold
3. Turbo
4. Silicone hoses/Clamps
5. Intercooler
6. Various Pipes
7. Oil line for turbo and various fittings for check valves, oil return etc...
8. Blow off valve
9. Wastegate
10. Vacuum hoses
11. Fuel Management
Putting it on is as easy as removing bolts and plugs, drilling into your oil pan, and replacing bolts. It only gets more complicated depending on what you do for fuel management.
Pros: Obvious increase in hp and torque.
Cons: Can greatly reduce engine lifespan if not done properly