Quote:
Originally Posted by luigi90210
the reason stillen intakes make more power over stock is it is tricking the ECU by mechanically leaning it out(like all intakes except for AEM) so the computer will only read X amount of air when there is really X+Y air(Y being the additional air not accounted for), and that combined with the cold air and better flow account for the rest of the gains
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I remember reading about this a while back. Wouldn't the leaning-out effect be negated by a tune? The folks that posted before/after dynos showed gains from the G3 intake even after the A/F was corrected with Uprev if I remember correctly.