A couple days ago, I put in a cold air intake that replaced the stock air box and ran all the way up to the throttle body. On my way home today on the highway, I heard a noise that almost sounded like wind blowing through the trees. Not a high pitched whistle, but more like how you would hear the wind blowing when you're in your house. Could this be air blowing from the wheel well through that hole that went into the stock airbox that's not there anymore? I couldn't hear it when I was stopped and it didn't get louder when I opened the window a little to hear if it was outside the truck like something with the wheels. Has anyone had a sound like this before after installing a CAI?