Air box cover off "whats that noise!"
I have the comptech filter in my S2, and 8,614 on the odometer. When I take the air box cover off I hear this whisling sound only at low RPM'S . What is it any one know? It almost sounds like a screeching belt.
Pretty well all cars make that noise on tickover with the air box lid off. It's nothing to worry about at all. Some people like the whistle, I don't. It disappears as soon as you apply revs.
Originally posted by motorhead
What about the "AEM cold air" does it whisle like that to?
What about the "AEM cold air" does it whisle like that to?

Basically, any CAI will make a deep noise in a car and some aftermarket cone intakes.
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Originally posted by AnDy_PaNdY
That sound is normal with the airbox lid off.
Now go VTEC it, you will do this
That sound is normal with the airbox lid off.
Now go VTEC it, you will do this
I still haven't found the right time to try that yet! Was out on Monday night, but mainly in traffic so didn't think it would be a good time to try it.... only hit VTEC twice


