I installed a DIY Intake on my truck about a week ago. When the truck shifts from 3rd to 4th and from 4th to OD the intake makes a psssshhh sound. I actually love the sound. Its kinda cool, sounds like a big rig!

Is this sound to be expected with the DIY Intake install, or is this a sign that something is wrong?

Truck had stock air intake before DIY install. Any feedback would be appreciated.