1.8T 2.7L Hybrid Recirculating Adjustable Relief Valve

Engine Compatibility: Designed for 1.8T engines and certain 2.7L twin-turbo applications, this valve also fits other turbocharged vehicles using a compatible 25mm or 1-inch fitting. A 2.7L engine requires two valves per vehicle. Three Modes: The precision splitter design allows for hybrid operation with atmospheric and recirculating air, as well as a fully recirculating or fully atmospheric configuration. Choose the mounting that best suits your turbo system.
Flow Management: Designed for turbocharged applications with metered airflow management, the valve helps release pressure when the throttle is released while meeting the recirculation requirements of compatible systems.
Pressure Adjustment: Turn the ratchet adjustment knob clockwise to increase spring tension and improve pressure holding, or counterclockwise to decrease tension and adjust the response.
Sound or Quiet: Enjoy the characteristic blow-off valve sound in hybrid or naturally aspirated mode, with the option of quieter operation in full recirculation. The lightweight aluminum construction provides a durable silver finish.