Turbosmart’s Kompact Shortie EVR05 Blow-Off Valve is a true plug-and-play upgrade for the MK7 and MK7.5 Golf. The Plumb Back is a full recirculating valve for quieter operation and OEM-style operation, with all the performance benefits of a Turbosmart BOV. It also fits many other current Volkswagen Group vehicles fitted with 2.0 TSI engines, including the Mk7 VW Golf GTI and R, Audi S3 and Skoda Octavia RS.A no brainer upgrade for any MK7 / MK7.5 performance enthusiast!