Originally Posted by
Injuneer
We (not sure why you chose to put it that way???) are saying that there is no way that it could add 25 HP ONLY from the ram air effect. We (????) also said that there was additional gain from cooler air. Compared to the stock ducting, there is probably significant reduction in pressure losses due to bends, changes in cross-sectional area, etc. Just going from the stock setup to a CAI seems to be good for 10-15HP (I found that to be true when I installed the Callaway Honker", based on ET gains). Note that they also list a "low restriction exhaust" as part of the package that added 25HP.