got one apexi power fc taken out yesterday .. upgrading to hks f con v pro for my RB engine.. if money is not the issue.. go for hks f con bro.. but find a really good tuner.. n sorry if i dont answer your question..
dear s15 owners/sifus here, I always wanted a S15, since the day it was born....but 1st n foremost, need 2 get my maths correct or i'll b eating grass like cow everyday :cry_smile: