ooooooohhhhhhhhhkkkkkkk. Here is everything you need for your custom set up:
-turbo
-turbo manifold
-wastegate(not needed if you used the turbo's internal wastegate)
-Blow Off Valve
-Intercooler
-Gauges(boost, oil temp, air/fuel ratio)
-VAFC, or some other way to play with you air/fuel ratio(Apexi Power FC in my case).
-breather
-charge piping
-down pipe
-oil lines
-increase your exhaust piping diameter.
You will need to add the following to run higher levels of boost
-Forged Pistons
-Rods
-Crank balanced (not neeeded but a damn good idea)
-Sleeved(once again, not needed but a good idea)
-Turbo Cams
-High Flow fuel pump
-High flow fuel rail
-Larger injectors
-Fuel Pressure Regulator (I say go with an FMU)
-Some form of Boost Controller, either electronic or manual.
-Turbo Timer (not essential but nice to have)
-One other damn important thing. Get yourself a mechanic who knows how to tune a turbo honda, so you don't go blowing things up.
I probably missed something in there, so add whatever.