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I was going to mention that the stock intake is a CAI as well. It does make sound though if you want it to. You can remove 2 bolts at the top to remove the cold air snorkel. Here is a video I made comparing the different modifications to the stock intake (JoeZ, HKS filter, resonator removal from snorkel, total removal of snorkel).
I'm sorry, but I think intake noise is something that doesn't need to be heard. It makes a car sound like an old man, wheezing for breath as he puts down what power he has.