The Ticon BorgWarner Marmon-style turbine outlet flange is specified for 4.21 S200/S300/S400 turbochargers and sized for 4-inch tubing. It provides a standard turbine outlet interface in Marmon style for custom turbo plumbing and exhaust fabrication where that turbine and tubing size are used. The flange is a fabrication component for joining turbine outlets to downstream 4" piping.
Ticon Industries Borg Warner 4.21 S200/S300/S400 Marmon Style Turbine Outlet Flange (4in Tubing)