The BorgWarner AirWerks turbocharger described is an S300-series unit with a 61.44mm FMW compressor wheel and a 0.83 A/R non‑wastegated turbine housing. It identifies by compressor size and turbine A/R for forced induction applications. Such a turbocharger specification helps characterize compressor diameter and turbine flow geometry for builders considering a suitable turbo for their intended powerband and setup.

BorgWarner Turbocharger Series S300 61.44mm FMW Compressor 0.83 A/R Non-WG Turbine Housing