Seller notes

( DON'T PAY $85.00+ SCAM ADVERTISERS for Inferior GM BOV Adapters on eBay or Amazon ) All UPR Blow Off Valve Adapters have a reverse cut rectangle port to give the best pressure/whoosh sound as many other models just make the hole larger reducing the air pressure for the whoosh sound. A lot more goes into the dimensions of the actual BOV cutouts and it's vitalto maintain the amount of pressure and velocity to get the absolute perfect WHOOSH sound and we have that perfected! This BOV Adapter will...

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