Eliminate any possibility of fitting stretch or possible weeping from excessive turbo heat by running this Ti oil feed fitting. 1 is needed per turbo.  Drilled for .045" for optimal oil feed rate.  -4 male to 7/16 inv flare thread.
 
Fits many Garrett medium frame turbos like: 
 
Garrett GT and GTX medium frame water cooled turbos
G25-550
G25-660
G30-770
G35-1050