It has a 1.15 A/R T4 Flange Turbine housingand is a good turbo for a daily driven application while still having responsive driving manors.But with the ball bearing designthis turbo will spool faster than its journal bearing counterpart. Bearing Type Ball Cooling System Oil & Water Cooled Wastegated Housing external Actuator Compete N/A Other Specifications Forged, fully-machined compressor wheel featuring next generation aerodynamics Sold as CHRA & compressor housing;tubine housing options available Ported shroud compressor housing to increase surge resistance Outline interchangeable with ball bearing GT4294R Optional turbine housings with T4 or large frame diesel turbine inlet flange Horsepower :475-950 Displacement :2.00L -7.00L
Compressor Wheel is a 70.30mm Inducer
Exhaust Wheel is a 82.00 mm
Turbo Part Number - 800269-1
Turbo Exhaust Housing Part Number - 757707-1 1.01AR Housing