Looking at the ebay pic, it looks like there's a couple of slots inside the tb mouth for an idle control setup. Are you guys using OEM idle control, if so, which one? EVO or VR4? There are slight differences yes?
I know at least with my Haltech idle control, I would just block it and run Haltech's own idle control unit which doesnt use that flange at all. It operates simply by taking a hose feed from the IC piping before the throttle body and another hose from a nipple out of the intake manifold.
Im keen to know whether the OEM TPS bolts onto that throttle body too?