depends on what pressure you want to run your turbo at.
without internal work or injection work (forged rods & pistons, lazer cut metal head gaksets, injectors, remapping. ect), You can run about 6-7PSI safely;
You would need;
Manifold, Turbo T3/4, Intercooler, Pipe work, Downpipe, turbo timer or wastegate spring.
If you were to up the boost futher than that you would then need to think of internal work/