That's what I did with the same type. I sold a real or over the counter one that had value to someone else. And got one to modify. I know I posted these pics before but I cut the machined area's into a a rounded shape. I did ruin a real one before, but refrained for doing so again.
That's funny I thought about doing the same thing because mine is an authentic ta I wanted to do some modifications but for now it remains stock who knows what the future holds. By the way your manifold looks righteous very nice.
