Ball Bearing Turbos (2.0L - 4.5L) 400 - 600 H/P // Oil & Water cooled bearign system / Compressor housing features a ported shroud / Works well as twins for large V-8 engines / T4 turbine inlet flange and V clamp outlet flange / Turbine housing is cast from high-nickel "Ni-Resist" material for extreme applications / Turbine housing option available