Originally Posted by markhs2' date='Jan 11 2009, 04:53 PM

Thanks guys, you are right.

I have an AEM cold air intake. I took the left front tire off and the sound was comming from the front of the wheel well where the air intake is.

I disconnected the intake at the connector to the 3 ft tube going down and behind the bumper just to confirm. This stopped the sound which could then be heard from the shorter intake tube comming from the throttle body.

What causes this?

Air turbulence?

I was a bit paranoid after installing the coilovers and not noticing this before. It's a relief.

Thanks again for your input and help.
Mark