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COBB flex fuel upgrade kit for 2018–2021 Subaru WRX models that converts a previous ethanol sensor to a CAN‑bus flex fuel interface and includes a fuel pressure kit. The package is intended to integrate ethanol sensor communication and provide the fuel pressure hardware needed for CAN‑based flex fuel control, enabling compatibility with flex fuel tuning systems on specified WRX applications.
Cobb 18-21 Subaru WRX Previous Ethanol Sensor Kit to CAN Flex Fuel Upgrade + Fuel Pressure Kit
