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The BorgWarner EFR medium-boost actuator is intended for use with 55mm and 58mm TW configurations and references 0.92 TH housings, offering a calibrated wastegate option for mid-level boost applications. It’s a component selection for builders who need actuator force matched to specific EFR turbo geometries and midpoint boost targets during installation and tuning.
BorgWarner Actuator EFR Med Boost Use with 55 and 58mm TW .92 TH
