LF Bypass Valve

The COBB LF Bypass Valve is a compact, lightweight valve engineered to hold high boost pressure without leaking across supported Subaru and Mazda applications. Its updated design reduces control volume for faster venting, uses low-inertia components for quick response, and adds an adjustable banjo vacuum port for clean routing and reliable operation.

• Fits 2008–2014 Subaru WRX
• Fits 2009–2013 Subaru Forester XT
• Fits 2005–2009 Subaru Legacy GT and Outback XT
• Fits 2007–2013 Mazda Mazdaspeed3 and 2006–2007 Mazda Mazdaspeed6
• Compact lightweight construction for tight engine bays
• Holds high boost pressure without leaking
• 360-degree adjustable banjo vacuum port
• Revised piston O-ring, spring, and seal design improve durability and clamping force

References: https://www.cobbtuning.com/newly-designed-cobb-lf-bypass-valve/