My $0.02 . . .

Intake: Icebox (hands down, same power less noise)
Header: Toda (Best off the shelf power and clearance)
Exhaust: mkteller 2.5" custom exhaust. (Customizable for noise)
ECU/Fuel Management: Power FC, AEM EMS or Hondata (All great options)
Cam Gears: Toda, Corsa
Cams: If it's a 97 or 98 ITR throw a 2000/2001 Intake cam in. Stock Cams make good power (190whp).