With the CAI, I think you'd be pulling more air w/out the e-ram than with. It looks to me like that thing is quite a spacehog inside that pipe. Also, if the air velocity in the CAI is xx and the maximum air velocity the e-ram can generate (yy) is less than xx, all you're doing is lowering air velocity and lowering total air volume.
At low RPM, this probably wouldn't affect performance, but once you start stepping beyond 4k or so, I think you'd be pulling less air, thereby lowering fuel consumption, thereby lowering overall power output.
I'll mention it to Keith and see if he's willing to express his opinion on the subject.
