Garrett G47-1650 (Supercore) High Flow, High Efficiency, GTX Gen II Comp Aero G-Series Turbine Aero Provides 20% Higher Flow And Efficiency (Compared To GTX47R) +9% Faster Spool (Estimated By Flow, Efficiency, And Inertia) 80MM Compressor Wheel Inducer | 109MM Compressor Exducer 88MM Turbine Wheel Exducer 74% Maximum Compressor Efficiency 75% Maximum Turbine Efficiency One-Piece Lightweight Aluminum Center Housing / Backplate Stainless Steel Turbine Housings High Efficiency Ceramic Ball Bearing Cartridge Fully Machined Speed Sensor And Pressure Ports