COBB LF Bypass Valve Subaru Impreza WRX/STI (GD/GG) / Impreza WRX STI (GR/GV) / WRX STI (VA)

COBB LF Bypass Valve - Subaru Impreza WRX/STI (GD/GG) / Impreza WRX STI (GR/GV) / WRX STI (VA)

The COBB LF bypass valve (BPV) is a compact, lightweight replacement for the factory bypass valve on EJ-engined Subarus. It holds very high boost without leaking, and its updated design reduces control volume by 30% so boost vents very quickly when the valve opens. Light moving parts respond faster, a banjo vacuum fitting rotates 360 degrees for easy hose routing, and a larger piston O-ring seal reduces wear.

Video

Inside the COBB LF bypass valve

Note: Suits the Impreza WRX (GD/GG, 2002-2007), Impreza WRX STI (GD 2004-2007 and GR/GV 2008-2014), WRX STI (VA, 2015-2021) and Forester XT (SG, 2006-2008). Not listed by COBB for the 2008+ non-STI WRX. Installation by a professional is recommended.

Features

• Holds very high boost pressure without leaking
• Control volume reduced by 30% for faster venting
• Banjo vacuum fitting with 360-degree adjustment and fewer leak points
• Piston O-ring seal twice the diameter of the old design
• 60% more clamping force at peak boost, with similar behaviour at idle

Pairs Well With

• COBB Intercooler Isolator Bushing - Subaru Impreza WRX/STI (GE/GH/GR/GV) / Impreza WRX/STI (GD/GG) / WRX/STI (VA)
• COBB Front Mount Intercooler Hot Pipe Kit - Subaru Impreza WRX STI (GR/GV)
• COBB 3-Port Boost Control Solenoid - Subaru Impreza WRX/STI (GE/GH/GR/GV) / WRX STI (VA) / Liberty GT (BL/BP)

Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.