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the nipple on the bov should have a hose connecting onto the intake manifold, the outlet/mouth of the bov should be plumbed into the intake pipe/hose on the mouth of your turbo. The bov its self bolts onto your crossover intercooler pipe.

Edited by LTHLRB
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OMG - The flutter sound does not come from the BOV....It just means your aftermarket BOV is set too tightly and most of the air is reversing back through the turbo getting chopped up by the impeller hence the 'flutter' sound...You couldn't hear it b4 because your airbox muffled the sound.

Back off the adjustment of your BOV to make it open up earlier and your flutter will be gone....even better chuck on the std BOV, they're pretty good until you start running high boost levels.

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