Hello,

my car is Gs430 model 2004
and I am considering purchasing an Apexi afc Neo computer to control the air fuel ratio.
Has anyone installed a Apexi afc Neo on the GS before? How were the results?

and I need the Installation instructions and how I can tun it or program the afc by me self

and What are the advantages and disadvantages What

I have the intake, exhaust, headers on my car but i didnt tun it up yet how can i tun my car???

 

up????????????????????

 

if youre losing MPG, the apexi neo won't help you. When was your last tune-up? check air tire pressure? Apexi Neo is used to control your fuel when you add bolt-ons that add more air flow (intake, exhaust, headers, even forced induction at 8psi or lower) which in turn needs more fuel.

 

^ yup.. check tires, maf, reset ecu

 

I have the intake, exhaust, headers on my car but i didnt tun it up yet how can i tun my car???