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 GTX29, GT30 / GTX30, GT35 / GTX35, GT40 / GTX40 90mm O.D. Flange with 81mm diameter mating ring, (suits 3 in. O.D. tubing)