Turbosmart TS-0203-1223 Kompact Plumb Back Fit 34mm | Universal

Features:

• Full recirculating blow-off valve design
• Quiet operation with no vent-to-atmosphere sound
• Recirculates pressure back into intake system
• Improves turbo response and throttle control
• Designed for stealthy performance upgrades
• Fits 34mm factory BOSCH or DENSO valves
• Compatible with Subaru Legacy/Liberty 09-10
• Not for use with diesel engine applications
• Ideal for street-driven turbocharged vehicles
• Compact size for easy OEM-style installation

Keep It Stealthy While Boosting Performance Like A Pro

If you want all the benefits of a high-quality blow-off valve without the attention-grabbing whoosh, the Turbosmart Kompact Plumb Back is the smart, subtle upgrade your turbo setup needs. This full recirculating BOV sends excess pressure back into your intake system instead of venting it to the atmosphere, giving you better throttle response and boost control without making a scene. It's a perfect choice for daily drivers and performance enthusiasts who want cleaner power delivery and long-term reliability without drawing eyes or ears. Designed to fit most factory BOSCH and DENSO bypass valves, plus direct compatibility with the 2009-2010 Subaru Legacy or Liberty, this unit drops in easily and looks right at home. The compact size means it tucks neatly into tight engine bays, while still delivering the rock-solid performance Turbosmart is known for. Whether you're stock or lightly modified, this is a dependable solution for smoother boost transitions and improved drivability. If you care about performance but prefer to fly under the radar, this is your kind of upgrade.

Recirculates Pressure For Reliable Turbo System Efficiency

The Turbosmart TS-0203-1223 Kompact Plumb Back is a full recirculating blow-off valve engineered for performance and control in turbocharged petrol engines. Unlike atmospheric valves, the Plumb Back system routes all excess boost pressure directly back into the intake system, maintaining consistent airflow readings and supporting smoother idle, shift transitions, and throttle modulation. This design is particularly effective in street-driven vehicles where maintaining MAF sensor accuracy is essential. With a 34mm fitting size, it directly replaces most factory BOSCH or DENSO bypass valves and is fully compatible with Subaru Legacy or Liberty models from 2009 to 2010. Its sealed, compact construction makes it ideal for space-constrained installations while still delivering the fast response and durability expected from Turbosmart components. Rated for use in gasoline applications only, this valve is not suited for diesel engines. Built with performance and system longevity in mind, this BOV is a practical solution for anyone upgrading or replacing factory turbo components.

Fits: Universal

Notes:

• Designed as a full recirculating blow-off valve
• Recirculates excess boost pressure into intake system
• Ideal for drivers seeking quiet performance
• Not for use with diesel engine applications
• Compatible with most factory BOSCH or DENSO valves
• Fits Subaru Legacy/Liberty models from 2009-2010
• 34mm fitment for direct replacement of OEM units
• Helps maintain MAF sensor accuracy and drivability
• Compact size allows for tight engine bay installations
• Recommended for street-driven and lightly modified vehicles