So i was talking to an integra owner at school today, anyway he kept coming back to one of his favorite mods being his Apexi SAFC-II he tried to explain to me what it does but did a poor job...i know its got somthing to do with a/f ratio, anyone here use them, they worth it? how much are they? how hard are they to wire up?

Thanks

 

Its just a piggyback, search for price (Usually in the 200 range on Ebay). You have to have access to a dyno to tune it. Most get pretty good numbers anywhere between 10-20 depending on mods. You can tune it after each mod you get or tune it once your done modding (P&P, cams, I/H/E, etc.) Results vary a lot but I think its worth it if you have cheap access to a dyno and a friend who knows what hes doing...

 

You could ghetto tune it with a narrowband o2 sensor IF you know you are running a lean condition fuel wise. If you are planning to boost the max at all it would be good to get and works in conjunction with a wideband o2 kit to help you tune a bit. There is more info in the supercharged/turbo forums and the all motor forum.