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The Turbosmart Kompact EM 25mm plumb-back diverter valve is a direct-fit upgrade for VR4 Volkswagen 1.4L TSI applications, replacing the factory valve without extra hoses or adapters. It features billet construction, high-temperature O-rings and an integrated solenoid with patent-pending pressure control to preserve boost balance. Use it to restore reliable recirculation and smooth turbo response in supported TSI installations.
Turbosmart BOV Kompact EM Plumb Back VR4 Volkswagen 1.4L TSI
