S-afc

Hey guys,
I was wondering about the S-AFC on obd- II. I have noticed that more than several tibs have it. I was wondering if these hars have seen a good hp gain with a smoother power band or if obd-II learns to adapt to the new settings. My question in four words: Is it worth it?

this is a fuel tuner correct?

what mods do you have that you would need this?

safc and safc2 are nothing more then "piggy back" systems that intersept the MAF signal and minuplate the airflow readings, alowing you to controle the amount of fuel you put into your combution chamber. there used when your add larger injectors so you can controle them. if you have no need for more fuel (turbo, suppercharger) you have no reasion to alter the high/medium/low fuel trims in your ecu.