Originally Posted by
Mobius
...or cautious. It may be difficult to isolate a leak to the line and rule out the cooler. A leak in an oil line is serious business, because failure of any of these components means bye-bye engine.
For that reason (and because it's completely unnecessary) I'd not bother with the added risk.
Bruno used to sell adaptor plates for the oil canister mount which allow you to run lines to a remote filter. If you want to install this; use that adaptor and run a line through the cooler and a remote filter than back to the block.