Vibrant Performance offers a variety of turbo outlet flanges for your custom fabrication projects. Constructed from 304 stainless steel and mild steel, Vibrant flanges are precision laser-cut or CNC-machined to ensure a perfect fit to your turbo components. For Garrett GT47 / GTX47, GT50 / GTX50, GT55 / GTX55 with T4 Turbine Housing 130mm O.D. Flange, 115mm diameter mating ring (suits 4" O.D. tubing)