Turbosmart TS-0203-1222 Kompact Plumb Back Diverter Valve

The Turbosmart Kompact Plumb Back Valve is a high-performance, fully recirculating diverter valve designed for turbocharged vehicles using 25mm fittings. Engineered to route excess boost pressure back into the intake system, this plumb-back design maintains quiet operation while delivering the improved reliability, boost control, and performance benefits enthusiasts expect from an upgraded blow-off valve. It is an ideal solution for drivers who want enhanced turbo system performance without the attention-grabbing vent-to-atmosphere sound.

Built as part of Turbosmart's proven Kompact series, the valve helps reduce compressor surge and improve turbocharger longevity by efficiently managing excess pressure during throttle lift. The included green spring is rated to -15 inHg and comes pre-installed, making the valve ready for a wide range of performance applications. Its compact design and broad vehicle compatibility make it a popular upgrade for numerous Audi, Volkswagen, Ford, Porsche, Saab, Volvo, Fiat, and other turbocharged platforms.

Designed for enthusiasts seeking OEM-style operation with increased durability and performance, the Kompact Plumb Back Valve offers dependable boost management while maintaining smooth drivability and factory-like refinement. For certain twin-turbo applications, such as the Audi S4 2.7L (B5), two valves may be required.

• Fully recirculating plumb-back design returns excess boost pressure to the intake system for quiet operation.
• Helps reduce compressor surge and improve turbocharger reliability and longevity.
• Ideal for performance enthusiasts seeking improved boost control without vent-to-atmosphere noise.
• Includes a pre-installed green spring rated to-15 inHg for versatile performance applications.
• Compatible with a wide range of turbocharged Audi, Volkswagen, Ford, Porsche, Saab, Volvo, Fiat, and other vehicles utilizing 25mm connections.