Unless the speeds are different, before I put on the 80mm Mass Air sensor, I had the stock unit on and had no stalling issues. My BPV is about 3-4 inches from the MAF. If it is the case, is there somebody that proved this, like having it too close and having stalling issues, then moving it and then having no stalling issues? I'll check out Injen to see what they did. BTW, I helped him put it on, so that's why I'm asking so many questions.