GFB Replacement BOV Inlet Gasket Subaru WRX/STI (GDB/GRB/VAB) Forester XT (SG) Suits T9003/T9503

GFB Replacement BOV Inlet Gasket Suits T9003/T9503

GFB is an Australian engineered brand best known for its blow off valves, and this small but important gasket keeps that seal factory tight. It's a direct replacement for the inlet flange on the T9003 and T9503 BOVs, designed to restore a proper seal where the valve meets the turbo inlet pipe on your Subaru WRX or STI. SKU 6705.

This listing covers the WRX and STI (2001-2007), STI (2008-2014), STI (2015-2021), and the Forester XT (2006-2008). Fitment on the Forester XT is limited to the triangle flange inlet — refer to the tabs above to confirm which flange your vehicle uses before ordering.

Note: Newer GFB BOVs use an O-ring on the inlet flange instead of a gasket and do not require this part. Confirm your BOV model is the T9003 or T9503 before purchasing.

Key Features

• Direct replacement gasket for GFB T9003 and T9503 BOVs
• Restores a proper seal between valve and inlet pipe
• Suits the triangle flange inlet only — not compatible with diamond flange fitments
• Simple, low cost fix for boost leaks at the BOV inlet

Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please confirm your BOV model and inlet flange type before ordering.

Not sure if this gasket suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.