BorgWarner 179375 DetailsEFR Super Core AssemblyThis unit, p/n 156-179375, is equipped with the iron bearing housing. Each Super Core includes a fully assembled bearing and rotor system along with a complete compressor stage. This includes the compressor stage accessories such as the CRV (Integrated Compressor Recirculation Valve) and BCSV (Boost Control Solenoid Valve) assembled to the comp cover. Not included is the turbine housing assembly, turbine housing clamp plate hardware, or wastegate parts. To build a complete turbo from scratch, the Super Core must be mated with a turbine housing, wastegate bracket kit, wastegate canister, and hardware/installation kit.Iron Bearing HousingB1 Turbo Frame Size54mm Compressor Inducer Dia.67mm Compressor Wheel O.D.58mm Turbine Wheel O.D.Straight Compressor OutletSuper Core Assembly Does NOT Include:Turbine HousingAssembly Clamp Plate HardwareWastegate Parts