Your standard aftermarket I/H/E will not work after turbocharging your engine, because:
the intake comes off of the intake turbine on the turbo, the headers are replaced by the turbo manifold, and.. well i guess the exhaust would work.. if i'm wrong on this can anyone tell me how it all fits together.. thanks

 

You can use an exhaust but i/h cant be used.

 

You would also want a bigger exhaust for turbo, 3" or so

 

http://www.howstuffworks.com does a great job of explaining it. I also have an explanation on my web site. see in the link below.

Blaze