Adam from ZFG wrote that post in my FB group originally…it was copied and pasted in here. The data was from his testing of both intakes on E50. Lower grade fuel won’t see the full increase.
I was just having a hard time wrapping my head around the aFe being double as efficient in gains over the FenFab, but who knows. Certainly the plastic formed aFe can take advantage of some flow that the fixed dimension of aluminum tubing can not. But I'm only sitting behind a keyboard