S400 87.4 81.7mm Inconel 713 turbine wheel for high-temperature operation. T4 Divided turbine housing in 1.0 A/R. Turbine Inlet: T4. Turbine Outlet: 4″ V-Band(T4). 67mm Billet compressor wheel. We recognize that quality is the responsibility of every employee, and we ensure that products and services surpass the highest standard.