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The COBB fuel pressure regulator is specified for 2008–2021 Subaru STI fuel rail kits and is intended to control fuel pressure when used in conjunction with COBB’s rail hardware. Offered as a compatible component for STI models across those years, the regulator integrates with fuel-rail upgrades and helps establish and maintain the target pressure required by the modified fuel system when installed as part of the kit.
Cobb 08-21 Subaru STI Fuel Pressure Regulator (for Fuel Rail Kit)
