I don't know if you're referring to Steve Sakai's back to back test, but that's what he found in his own testing w/my car, which is to say the AEM CAI is not the best choice for an ITR.

The J's Racing intake did show definite gains, but, of course, it's fairly expensive and some people won't buy it just because it's weird looking and costs so much.

A number of us have settled on the Comptech Icebox as the good compromise solution.

A short tube intake can get you extra horses on an ITR motor, as Dave Stadulis and Steve Sakai were also able to prove on my ITR. However, they have never put together any kind of marketing plan for the intake they tested on my car, and evidently do not intend to sell it.

You've already said you were talking about a GS-R, not an ITR, and I just want to remind you of that.

The OEM intake system on an ITR is different from the OEM intake system on the GS-R. The fact that the AEM is not the best choice for the B18C5 ITR motor does not necessarily mean you can equate that experience to the B18C1 USDM GS-R motor.

In fact, to this day, you will find die-hard GS-R AEM owners who say their cars improve 10 or more Dynojet HP when using the AEM, compared to a run on the same day using their OEM intakes.

When it comes to intakes, the ITR and GS-R are just too different for an ITR owner's decision to have an effect on the GS-R owner's decision.