Article by Rubine of the XLFORUM ¹⁾

This is an upgraded oil return to change the scavenge to the front of the engine.
It also incorporates a modified 07 XL oil pump (modified by Charlie Karling of Karling Racing).

The fittings are all stainless and they're thin wall so no I.D. has been lost. Its actually been opened up a bit.
The bar is Aluminum - (4) O-rings missing from the fittings in the pic below that will make a good seal, which of course is crucial to this working.
There will be windage protection over the scavenge point as well.
The bar could also be tapped into for external drains such as from the heads.
A strong clear site tube will be installed from the cam chest drain to monitor drain oil.