7685E Ball Bearing Turbo UP to 1500HP Ball bearing system provides optimal turbo response & better durability by reducing the shaft-motion Billet Compressor Wheel with Extended Tapered Tip Technology Inconel 713c 11 Blade Turbine Wheel T4 divided and V-Band In/out are available in turbine housing option Vband Flange kit for the exhaust housing included Max Engine Horsepower: 1700 Compressor Cover: Standard Turbine Housing: Without Billet Compressor Wheel: 76x 102.4mm, 7+7 Blade Turbine Wheel: 85 x 89.5mm, 11 Blade Bearing System: Dual Ball Bearing (provides optimal turbo response & better durability by reducing the shaft-motion) Compressor Cover: 4.0” Hose Inlet/3″ V-Band Outlet Turbine Housing: T4 Divided 1.28A/R(4″ V-band Outlet); Dual V-Band 1.15A/R(3″ V-band Inlet, 4″ V-band Outlet); Dual V-Band 1.28A/R(3″ V-band Inlet, 4″ V-band Outlet) The internal oil feed port is 0.9mm(An oil restrictor is not needed) Oil feed fitting: 1/8-27 NPSF Oil Drain: -12AN