Dual Ceramic ball bearing system provides optimal turbo response & better durability by reducing the shaft-motion. 9 Blade PTG-Aero Billet Compressor Wheel with Extended Tapered Tip Technology9 Blade PTG-Aero Inconel 713c Turbine WheelAnti-Surge ported-shroud compressor inlet, cover integrated with the speed sensor port. Get ready for an exhilarating and reliable ride with our PSR 4849 550HP 48mm Dual Ball Bearing Turbo! Our dual ceramic ball bearing system reduces shaft-motion for optimal turbo response and durability. Experience superior performance with the 9 Blade PTG-Aero Billet Compressor Wheel and extended tapered tip technology, paired with the 9 Blade PTG-Aero Inconel 713c Turbine Wheel. Don't forget the anti-surge ported-shroud compressor inlet and cover integrated with the speed sensor port, ensuring a smooth and high-quality experience. Conquer the road with our turbo and feel the power like never before! Internally Wastegate, Billet Actuator (12-14 psi) Compressor Wheel: 48*60mm Turbine Wheel: 54*49mm Compressor Inlet: 3? Hose Compressor Outlet: 2? Hose Turbine Inlet: 2.5? V-Band Turbine Outlet: 3? V-Band Water Ports: -6AN Oil Feed: -4AN to the Oil Restrictor Oil Drain: Std T3 Oil Drain Flange