Intake: 4 inch Outlet: 2.5 inch Compressor trim: .70 ar Compressor wheel diameter: 65.55 /82.00 Turbine wheel diameter: 45.74 / 62.86 Exhaust Trim: .48 ar Turbine flange type: T3 flange Down pipe flange type: 2.5" v band Cooling type: oil cool only Horsepower rating: 350-400