Hey guys and gals. I just picked up a set of gold sti bbs rims and the guy I picked them up from also has a 2nd gen apexi safc nib. I have never used one. Is this some thing that can be used on my 2012 mazda5?
It is used to control air/fuel ratio so you can run more lean or rich, both have its upside and downside. If plan on going FI or think you can flip it for a profit, go for it. Otherwise, no, there is absolutely no need for it.
