This oil filter housing adapter allows the use of an external oil cooler, and remotely mounted oil filter.  Large threaded holes are 7/8" x 14 which is -10 AN thread pitch, any o-ring seal -10 bung will thread right in.
Also features Q2 - 1/8" npt threaded holes for turbo oil feed, oil temp, oil pressure, etc.
CNC machined from 6061 billet aluminum, includes o-rings to seal on block.