Exhaust Inlet Flange: T4 Flange. Cooling Type: Oil Cooled. Compressor Trim: 56.1. Compressor A/R: 0.8. Oil Inlet: 1/8"-27. Oil Outlet: 2 M8 1.25. Compressor housing: ZL104 aluminum with lightweight. Compressor wheel/blades: Cast aluminium blades – superior air tightness & corrosion resistance.