Not true, pretty much the only difference will be the cooler air with the CAI with will give you a little more power than the SRI but even then its hardly noticeable. You may also get a slight change in induction noise depending on your setup. My current setup screams just as loud as a SRI but in a much deeper tone, and without the drawbacks. Trial and error and at the end of the day its your car, each to their own. Ahh cool, thanks for clearing that up for me then! =)