Well the theory is - unless you get a reflash or ECU tune you are going to notice the torque loss down low due to the long gear ratios in the auto. Or at least it will be more noticeable than the 6MT where the revs can rise faster. Further, a full CAI really shines in the upper range where the auto again spends less time (well at street legal speeds anyway - the auto does not hit 2nd gear 6000rpm VTEC until over 100kph). Something like the icebox preserves the low range and also gains mid range which also suits the auto IMO. Others may disagree.

