sucks

I just installed a BBK cold air intake on my car and notice that after I turn off the engine there is a noticeable sucking noise for a few seconds, is that alright? Thanks for any help.

Perfectly fine. I'm suprised you didn't notice the sucking noise when you romp on the gas as well.

If the car runs fine dont worry about it, if it makes you feel better double check all the clamps and hoses make sure every thing is connected and tight.