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Ok, I know that AEM ems is the best way to go, and E-manage is the second best for boosting. I need opinion on the S-afc. I know what you all are about to say, that it's crap. For now i think i will use the S-afc just for a few months and then go E-manage. How much psi can do safely with an s-afc? Any info would be great.

 
Rep Power: 305

No boost with the vafc! Do it right the first time. Why buy a vafc now then switch to emanage. thats just wasted money. As said before the vafc DOES NOT have ignition timing control. You need that to make the car reliable and to make the most power possible with whatever setup/psi you are running.

 
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I ran 6psi with rsx s injectors for about half year and it was fine. But, keep in mind, using safc to lean out the fuel will make u running with advanced timing, which is not safe....

my opinion is save up for emangage or ems...

 
Rep Power: 584

dont waste time and money

 
Rep Power: 321

u can get an e-manage for about the same price as a safcII or vafcII... just a thought.

 
Rep Power: 281

I would advise against the emanage. It does not work well with our ecu. I would get pcs or ems.