The Garrett G30-825 G-Series II turbocharger with a 1.01 A/R turbine is specified with V-band compressor and turbine connections and an internal wastegate (IWG) as noted. It serves as the higher A/R option in the G30-825 line for applications that require the stated 1.01 A/R turbine geometry and the V-band interfaces described in the source.
Garrett G30-825 G-Series II Turbocharger 1.01 A/R V-Band / V-Band IWG