all about power to weight ratios.
I would go with
some type of CAI....I prefer the icebox
header,..............smsp,toda,hytech
exhaust,..........generic 2.5, no resonator, ES oval muff.
flywheel...........fidanza or any other overpriced chromoly unit
tranny is key,,,,,,,if your actually getting a complete ITR unit
obd1 is always nice
ITB's if your bold...........and there are ways to make them cheap...