yea, or you could just drive harder or just drive the way you drive if its already hard..davefisher said:They say that because there technically is no cold air intake for the IS. They are all a "short ram" intake by design.
Pull the neg. off your battery, leave it for a minute or two. Hook it back up.
Drive hard (if you're into that) for the first few hundred miles that it's hooked back up. The ECU, to some degree, supposedly memorizes your driving style, i.e. how hard you are hitting the gas to take off, and adjusts it's A/F settings accordingly. (i think...)
So if you drive like a grandma for the first 500 or so miles, you might notice less power than you could potentially have if you drive hard. It's been proven. People have dynoed, flashed their ECU (unplugged the battery) and re-dynoed and shown up with quite a good bit more HP by the numbers... hope that helps you understand a little more.