The Stainless Bros 3-inch tube to T4 turbo inlet flange is an undivided SS304 flange with M10 x 1.5mm threaded holes, designed to mate 3-inch tubing to a T4 turbo inlet. It supplies a common inlet interface for turbo installations that use 3-inch piping and T4-pattern housings, giving a threaded, machined mounting surface for a direct mechanical connection.
Stainless Bros SS304 3in Tube to T4 Turbo Inlet Flange Undivided - M10 x 1.5mm (Threaded)