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Precision CNC-machined for exact fitment
A diverter valve (DV) is a pathway for boost when it is not being used by your engine
Includes special Fundamentals section
Equipped with an ITG Maxogen foam air filter
Euro Sport Performance Diverter Valve - VW Mk4 /Audi 1.8T/2.7T Spark Plug Wires Precision CNC-machined for exact fitmentWondering where your boost went? Power delivery not as smooth as it used to be? Most likely your engine's diverter valve is to blame. What is a diverter valve? A diverter valve (DV) is a pathway for boost when it is not being used by your engine. Whenever the throttle body is closed, like during shifts or decelleration, the boost needs an escape route. If the boost cannot escape during these times, it can back up and cause shocks to the turbo. These
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