P/N 14411AA700
The Subaru OEM IHI VF48 turbocharger is a direct bolt-on option for the WRX & STI, utilizing the factory mounting points and attaching to the factory oil and coolant lines. … If upgrading from a smaller WRX turbocharger, this will require fueling and tuning upgrades to operate safely.
The VF48 uses the standard RHF55 divided journal and thrust bearing CHRA, F55-81H turbine and the model 479 Compressor wheel.

Six Star Speed markets listings of brand new factory built VF48 turbos.