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The BorgWarner EFR low-boost actuator for .83 notation is intended for use with 64mm–80mm turbine-wheel configurations. It offers the boost-control calibration tailored to low-boost setups on larger turbine-wheel EFR chargers and is used when replacing actuator components on compatible units. Install this actuator to maintain correct boost response for 64–80mm EFR turbine-wheel applications.
BorgWarner Actuator EFR Low Boost Use with 64mm-80mm TW .83
