SexySallySupra Posted November 27, 2004 Share Posted November 27, 2004 With a full induction kit on a TT and letting off the revs around 4k, you can hear a wuuuush from the turbo blowing the air back out of the airbox (no BOV) can this sound be heard loudly from outside or not? Link to comment Share on other sites More sharing options...
Jake Posted November 27, 2004 Share Posted November 27, 2004 The noise you're hearing is the compressed air rushing through the stock recirculating BOV. Yes it can be heard outside the car but not as loudly as a vent-to-atmosphere BOV. Link to comment Share on other sites More sharing options...
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