I just instlled the intake setup and it sounds good but the only thing that annoys me is when I shut the car off there is a sound (POOF) that comes from the the throttle body kinda like compression sound or something, how do I remedy this?
thnk you

 

You dont! Other than putting the OEM air box back on. I hear mine suck air bigtime at WOT and even at idle you can hear it sucking.

 

that sucking sound rocks!