Are Cold Air Intakes Worth it? There has always been a big hype about getting a cold air intake. Well its been brought to my attention that cold air intake doesn't work as expected on turbocharged engines. My second in command on the forum ISX is a wizard of sorts when it comes to figuring out math formulas and calculating different things on the Cummins engine. From his research in this, there is such a small difference in volume that you'll never see a measurabl