Let's not discourage the OP from doing what he wants to do, if he doesn't want to take our advice then we should guide him the right direction.
To the OP here's some advice, not worth the money to do everything you want to do on these NA engines. But if you have deep pockets then alright, I will tell you everything you would want to know.
AA Exhaust (New One)
3 Stage Intake Manifold
Simota V2 Intake or BMW Performance Intake
If you really got deep pockets then you should do a whole complete engine rebuild with all performance everything!