intake exhaust done/ what should i do to get next 4 more hp?

 

what is the purpose of the car? daily driver? weekend fun? track only? quick errands to the grocery store? do you want to stay naturally aspirated or would you consider going forced induction? whats your budget? also what d16 is it?

 

header

 

i'd say header or scrap it all and go boost.....

i've had one d16...and i modded it a lil and it was fun...it was NA...but after riding in a boosted one i'd never want another NA single slammer...boost it...but if its your only baby...or your a college student....just get the header and be happy...

 

if you want a decently quick car and keep all the mods that you already have, put a header on it and spray it.

 

a Y8 tranny .. unless of course you drive an ex .. wont give you HP but will give you faster acceleration due to shorter gears ..

 

i have a d16z6 w/ aem v2, GReddy headers and GReddy sp2 exhaust, omnipower test pipe, obx lsd, and a hondata s200 and its fun even tho its NA. plans to boost tho.