Turbosmarts billet turbo oil feed flange adapters offer a reliable and simple solution to prevent oil leaks at the turbo oil drain, improving safety. Turbosmarts hard anodized billet turbo oil drain flange adapters offer a reliable plug-and-play solution to fit Turbosmarts Oil Drain oil drain to a -8AN or -10AN fitting. Three sizes of flange adapters are available to suit a wide variety of turbochargers.