The COBB LF BPV is a compact, lightweight by-pass valve, CARB-certified, that holds high boost pressure without leaks.
Its design reduces control volume by 30%, enabling swift venting of boost upon actuation.
Precision engineering and manufacturing create a compact package that fits tightly in the engine bay.
Lighter components reduce inertia, which enhances response speed.
A Banjo-fitting vacuum port offers adjustability for 360-degree hose routing, simplifying installation and minimizing potential leaks.
The new design features a larger piston o-ring seal that reduces wear.
The updated spring and seal design increases clamping force at peak boost by 60%, while maintaining similar idle and transient load operation.
This Subaru LF BPV fits 2008-2014 WRX, 2009-2013 FXT, and 2005-2009 LGT models.
It is 50-state legal, with a CARB EO number: D-660-9D-660-11D-660-39.