The Vibrant Turbo Outlet Flange for PTE Medium Frame turbo housings is precision machined from 304 Stainless Steel and is compatible with Precision Turbo Medium Frame turbo housings (CAE 5 and 6 series). This PTE V-Band Flange has an OD of 90mm, a 7mm mating ring diameter, and suits 3″ OD tubing.