Stainless Steel, CNC Machined 5 bolt Welding flange for T3 turbine with External wastegate use. New "JS" Series with 3" ID hole and machined taper from turbine opening to the outter side of the flange. Ready to insert 3" OD tube and weld. Tight fit for nut head, but clears and looks sharp! 1/2" Thick material wont distort during welding.