Dewhel 25mm 3 in 1 bov aluminum dump valve For VW Passat beetle Bora Golf Jetta A3 A4 A6 TT 1.8T BOV BLOW OFF VALVE 100% NEW Port 25MM,Will also work on other cars measuring at 25mm (.986 of an inch) inlet and out if you want it re-circulating. Accessories: Flanges, bolts and gaskets are included Fit for Volkswagen 1.8T Engines& Audi 1.8T Engines Made out of aircraft super strong and light weight Aluminum 6061