-4 AN x 1/8 NPT Turbo Oil Feed adapter Fitting with .035 orifice.   Fitting let you limit the oil supply to the turbo, reducing damage to your Turbo Oil seals. CNC Machined from billet aluminum , Black Anodized and laser etched with orifice size for easy identification.   We machine these fittings  in house on state of the art CNC machines right here in the U.S.A.   

By Pro Custom Machining

NOT MADE IN CHINA. like most fittings sold on eBay!