COBB Tuning Subaru XLE BPV 2004-2021 STI / 2002-2007 WRX

Description:
The C.A.R.B. Certified COBB LF BPV is a compact and lightweight by-pass valve that is capable of holding very high boost pressure without leaking. Its updated design reduces control volume by 30% allowing for extremely fast venting of boost when actuated. Innovative engineering and precision manufacturing result in a compact package able to fit in the confines of a tight engine bay. Due to the low weight of the components, the moving parts in the LF BPV have less inertia and can respond faster than heavier components in other bypass valves. This updated design uses a Banjo-fitting vacuum port which provides 360-degree adjustability of the hose routing. This results in a simpler install and fewer potential leak points than the NPT ports. This new design also includes a piston o-ring seal that is twice the diameter of the old design allowing more seal compression and reduced wear. The adjustability of the spring seat is no longer needed due to the updated spring and seal design which provides a 60% increase in clamping force at peak boost while maintaining similar operation at idle and transient loads.

Features:
- Updated design reduces control volume by 30% allowing for extremely fast venting of boost when actuated
- Compact design allows fitment in a confined engine compartment
- Lightweight components create less inertia and can respond faster than heavier components
- Uses banjo-fitting vacuum port which provides 360-degree adjustability of hose routing
- Piston O-ring seal is twice the diameter of the old design allowing more seal compression and reduced wear
- The adjustability of the spring seat is no longer needed to the updated spring and seal design which provides a 60% increase in clamping force at peak boost while maintaining similar operation at idle and transient loads
- 50 State CARB Legal

Includes:
- 1 x COBB Bypass Valve
- 1 x Black Silicone Hose with COBB logo
- 1 x Banjo Fitting / Screw
- 2 x Washers

Applications:
2002-2007 WRX
2004-2007 STI
2008-2014 STI
2015-2021 STI
2006-2008 Forester XT