The manifold is stock 6-2-1 to a divided flange. There is a merge collector from 2 to 1 towards the turbo flange and the flange is a CNC tapered 3" divided. This is not what anyone would call a 99.9% super efficient build. It is intended to exercise whats possible using stock manifolds on a tight budget. The wastegate divert at the point where all gases met and with the path of least resistance should still be effective. Or thats the idea.
