I plan on getting my sc'd set up tuned once I get my dyno next week. I am unsure which unit I should invest in and what type of gains I should expect. The Emanage or the Apexi SAFC. I have heard good and bad of both.

 

Emanage or HKS.

The uni-chip isn't a bad unit either. Don't use the SAFC on our car.

 

Whats wrong with the S-AFC II?

 

I think people were having a problem with the ECU overriding the afc. But also what I gather is that if you don't try to adjust fuel below 4k rpm, then it works fine. Adjusting anything below 4k rpm will yeild a Check Engine light from what I gather.

 

I hate the SAFC...such limited adjustability