I won't bother to post the whole mod list, because it's long...
The basic stuff: JDM spec c s202 motor swap(higher revving, bigger cam/head 2.0L), RA gear'd tranny(shorter, stronger), Cusco front, rear and center tarmac diffs, Tein Super Racing coilovers, Blouch 18g turbo, is300 fender flares(cut stockers up for more room), 17x9 and 18x9's with 255's or 275's, flat silver paint. The list goes on...
I bought the car new in '04 and it basically looked like this soon after:
To this:
To this(wheels, coilovers, bigger turbo, jdm body parts):
This(more power, jdm fogs):
And this: