Its a twin scroll flange.. one bank goes to one side of the twin scroll and the other goes to the other side.. 2.5 tubing will fit pretty much perfect into one side of the t6 twin scroll when mesaged into a rectangle..
So just weld the tubbing to the bottom of one port for driver side and the other port of the flange for the passenger side and don, correct? Seems simple enough. I plan on cutting and tacking own system and then having someone else fully weld it.