^^ what he said ^^
plus this place ::
http://www.nissanperformancemag.com/...oject200sx.php
^ its the same engine just a different body , and a +5hp engine.
CAI : expect 2-5 wheel hp
exhaust : because its a 1.6L 2in is the optimal size , any bigger you lose bottom end. The only reason for bigger than 2in on the GA16 is for turbo applications.
header : expect a 4-10 whp gain , and you wanna go with hotshot if you got the money, remember you get what you pay for , and from most peoples experiences pacesetter is cheap on quality with satisfactory performance , but some say its good.
with just these mods , you can probably expect between the area of 90-100 wheel hp , because you're starting out with 85whp with the automatic GA16DE
