LS Oil Adapter adds 3 – 4 AN ports. This part makes feeding multiple turbochargers and oil fed valve covers simple by adding 3 AN -4 ports with factory 16mm threads for LS engines. This fitting hold down bolt also includes 16mm female port for using factory GM sensor for ECU/dash.  The band fitting can be clocked in any position that is convenient for your application and uses O-ring seals. This fitting is commonly used at rear of engine behind intake manifold and will clear LS1 (block) and newer LS2 style (cover) mounting.