This is an old school block off flange that allows you to run an external wastegate off the manifold by blocking the flapper on an internally gated turbo. This is a stock DSM/Mitsubishi/FP OEM bolt pattern. If you REALLY wanted to, you could make a hole and weld your tial V band outlet flange in the stock location and convert this to an External dump setup with the gate on the flange. $115 shipped to the 48 Continental U.S.