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These COBB fuel rails are built for 2008–2021 Subaru STI applications, providing a direct-fit replacement or upgrade to the factory rails. Offered as dedicated rails for the specified STI model years, they are intended to integrate with existing fuel delivery components and support higher-flow setups when paired with compatible lines and pumps. Use them during engine work or fuel-system upgrades for listed STI vehicles.
Cobb 08-21 Subaru STI Fuel Rails
