^ Dude that is just a bunch of bulls*** all wrapped in a neat package with a "Mazda Tech Answer" bow on it.
What you have here is completely wrong.
MAZDASPEED intakes are made by AEM, and while they are nice, it has been proven time and again that they actually cause problems all by themselves, typically due to their incorrect MAF metering section. This slight mis-calibration throws off some cars more then others, but ask around and you will see what's up. Truth is, whether it is an engineered SRI like Cobb's, or an engineered CAI like CP-E, you'll find the main factors in those being so successful and seamless in our cars to be the same thing: the MAF section is identical to stock in size.
Mazda didn't tune for anything with this intake, or any other. This computer learns the A/F, MAF inputs, and driving habits amongst other things and eventually creates its own trims depending on those variables.
Lastly, probably the reason why CAI's are working here while SRI's aren't is NOT that too much air is entering the intake! This is just silly. It is likely an issue of the short ram not being designed properly to straighten the airflow in time (unlike a long tube will tend to do), and this non-linear airflow is disrupting the MAF! The Cobb SRI doesn't have this problem, because they engineered a velocity stack to straighten the flow out. Simple.
This is your first post, but seriously, I'd reconsider telling anybody you are a Mazda tech until you've got the facts straight, not just what someone told you.
This is not to flame you or insult you, but to correct the mis-information that is coming out of your post.