Intake: 4 inch Anti Surge Compressor Housing Outlet: 2.5 inch Compressor Wheel Diameter: 72.35mm / 102.86mm Turbine Wheel Diameter: 68.40mm / 79.00mm Exhaust Trim: .84 AR Turbine Flange Type: T3 Flange (Twin Scroll) Downpipe Flange Type : 4" V-Band Flange Cooling Type: Oil Cooled Only Twin Scroll Turbine Housing (Quicker Response Than Single Exhaust Outlet) Horsepower Rating: 600-700HP+