that's one crazy sound. it persisting after shutdown kind of says to me that it's vacuum / PCV breather tube related. i would check to make sure that the clamps for the breather tubes are completely tight and that there's no looseness not only at the intake but all the way down.

I checked everything and bought extra hose clamps to tightened up every single tubes that could possibly leak, but still no luck! :inoutroflpuke:

btw is there anyway I can get heat shield for this intake? What if I call K&N or Stillen if I can only buy heat shields? You think they would do that??

did you ever figured out what was causing this?

resurrecting this since it's easter n all. ever figure it out? I think it's a vacuum leak. I have the same issue after installing K&N and post maf tubes.

Exact Same issue
 

So yesterday i installed the Takeda SRI. Well i have the exact same issue. Its a (dog whistle) type sound coming from the drivers side intake. Ive tried al the steps that the factory suggested in the post and noticed what i think could be the issue.

When i took the filter off and covered the intake quick in sucked my hand and noise gone. So i loosened the bands holding the pipe on and removed it (left the small ccv, Crank Case Vent connected and still had the noise. Then i relieved it had to be that ccv so i looked at stock part vs new pipe and the ccv inlet is smaller then 1/4" while stock is closer to 1/2". Im guessing the smaller hole creates more suction speed but i believe its also making the whistle. I am planning to bore it out a bit tomorrow, any other suggestions?

Also, after the install i noticed right away my service engine light is illuminated. i had the battery disconnected so figured the ECU would get used to the new intake, hoping thats the issue. I will be checking codes tomorrow as well.
Last the the idle is now high it seems (about 1100 warmed up).
http://i11.photobucket.com/albums/a1...igam55/1-1.jpg
http://i11.photobucket.com/albums/a1...igam55/2-1.jpg
http://i11.photobucket.com/albums/a1...igam55/4-1.jpg
Hope i can straighten this out because it looks and sounds mean (besides the ear piercing whistle!)

Please help

bump!

What was code?

And you said pulled off filter to trace down sound , so u may need to check all connections again and do reset to eliminate check engine light.

Hate to bump this guys but I have the exact same sound. Appeared after my first track day. Any suggestions?
Cheers.