I think I understand what you are asking. The piece with the o-ring in the original piece that comes with the Spearco system. I bought the kit from board member turbojack. He handmade the other piece. Once the pieces are joined, the throttlebody is moved to the adapter. The turbo is still clocked. The piece with the two holes in the bottom replace the piece the goes into the stock hot air turbo. Due to the mounting of the turbo and the clocking, it is limited space back there. Basically turbojack had issues with idling and adapted apiece to move the throttlebody. One could go so far to fab a 90 degree elbow and connect to throttlebody that way also. I think t-type85 (Chris) did this on his car. I hope I have answered the question, if not I will try again. or shoot more pictures.
Chuck