COBB LF BPV (712665) | Subaru WRX 2002-2007 / STI 2004-2021

The COBB LF BPV delivers fast, consistent boost response by replacing the aging factory bypass valve with a precision-engineered, leak-free design. Built to maintain stable pressure across a wide range of operating conditions, it enhances drivability, throttle transitions, and overall turbocharger efficiency while supporting both stock and tuned Subaru setups.

KEY FEATURES

• Improved boost response with rapid valve actuation
• Engineered to prevent pressure leakage under high load
• Optimized design reduces compressor surge during shifts
• Direct bolt-on replacement for factory bypass valve
• Reliable performance for both daily and high-demand applications

TECHNICAL SPECIFICATIONS

• CNC-machined aluminum body for long-term durability
• Viton-based sealing elements withstand heat and pressure cycling
• Spring system calibrated for factory and increased boost levels
• Modular recirculating design ensures proper air metering
• Tested for stability across extended thermal operating ranges

VEHICLE FITMENT

• Subaru WRX 2002-2007
• Subaru STI 2004-2021

COBB delivers proven, data-driven performance solutions engineered to optimize your Subaru with unmatched precision and reliability.