a CAI will give you a small amount of power....Like 1-3 approx. But if you also go ahead and get the Headers and Exhaust and upgrade your plugs ans wires you should notice a little diff. those are the first few mods that everyone makes for a little extra.
Now you could swap out the motor and convert it to a 5 speed and just get the HP you might want right out the box w/ a DOHC B16,B18 or something along those lines. On top of that you could then add your I/H/E and benefit even more w/ the new engine.
If you did want to go the turbo route then don;t worry about a header and just get like a greddy 92-95 kit or look around on
www.thepartstrader.com or
www.ebay.com and find you a kit to put on there. that would be an option for some good HP, but also think about maybe building the internals of the engine to lower compression and run higher boost...
Hope this might help a bit.....along w/ other feedback you might hear..:frog: