I've got stainless steel with rubber insulated outside -3an ka oil feed line, steel tee fitting, 1/8bspt fitting that threads into the oil block (not 1/8npt which is the wrong size btw). Basically everything you need to plumb oil to a turbo on a ka for $30. To put things in perspective: The BSPT fitting alone costs $10 new, amazon will charge you $30 to make the line, and the tee fitting is another $10. Oh, and -3an means no restrictor on a journal bearing turbo! Yes this is proved to work, because it was all removed from my old ka-t car.