Well I by no means am I any kind of expert on the matter of dyno testing and such but I have been messin with cars for 20 yrs and met and talked to many experts on such things as air intake and temp. it is a fact that the cooler the air is going into the engine the better it will perform Hence (cold air intake systems) with the oem air intake sittin right on top of the engine heating the air going into the engine and filter right there to slow the air (which will heat it more) the cgs system with the filter mounted low and away from the engine itself (not to mention a better type of filter) and a coated (heat sheild type) tube suppling the air to the engine from the filter not slowing it at entry point would most deffinetly have to improve performance and HP. That is why scoops were invented back in the day by drag racers to supply the coolest possible air directly to the engine for increased performance. So in theory Mikes test should be as stated maybe not to the exact pin pointed number but the same concept of many many other designers and engineers over the past 50 yrs state thats the way it is!!?? just my 2 cents

 

besides dynos are machines and can malfunction etc.. If you wanna impress me take an hhr to a 1/4 mile track run it as hard as possible with both intake set ups and get the time slips (cant get any more real world than that!!) LOL

 

This was stated on another forum and may not be my 100% opinion but here it is... "Dynos are for tuning. If you want to know what gains you get from bolt ons run it at a track!"

 

And on that note before this gets too way too out of line, locked, as this topic has been debated before.