Perhaps an answere- Not to bring up an old post but I was having the same issue with mine. All I did was install a cai and stage 1 cobb ots tune. got the squeek crazy annoying!
week later I did all the stage 3 additions and included a turbo smart dual port BOV. The squeek does not exist anymore. My thoughts are get out of the stock DV as others have also suggested.
week later I did all the stage 3 additions and included a turbo smart dual port BOV. The squeek does not exist anymore. My thoughts are get out of the stock DV as others have also suggested.