This is a super long story, cliffs are at the bottom.
The contenders:
STi - Axis stageII motor, GT30-12 turbo, GT Spec header/up, Invidia DP, JIC full Ti cbe, UTEC w/remote, Perrin turbo inlet hose, APS short ram, APS DR650 fmic, walbro pump, Perrin modded injectors & spec stageII clutch...