Hi Everyones
MY car make a rare sound like BOOOOOOB in the air intake tube, if knock the TB the sound is more loud.
What you guys THINK???

 

i made a custom cai from intercooler piping and mine did the same thing. if you look where your tube goes through the hole into your bumper, the pipe is rubbing on that and vibrating. get some rubber tubing from the autopart store, cut a slit in it from one end to the other so it opens all the way from end to end. install this tube around the hole of your car where the intake enters the bumper and the noise will be gone.

 

my car makes that noise only in the summer lol...i just turn the ac on and it goes away