Aeromotive 15649 Reverse Port Adapter Fitting AN-6 cutoff to AN-8 Flare Union Individually machined from billet aluminum stock on a CNC machining center Simply installing an Aeromotive reverse port adapter is the easy way to virtually change any ORB port to the next larger side and have the same flow as if the port were larger to begin with All Aeromotive ORB port fittings include the correct AN O-ring for sealing (not shown) Made in USA