What's the scoop on the CAT filter adapter? Would it be wise to do this if installing a lift pump?
You can do what ever you like. I would rather have more/better filters, than be broke down at -40f or trashing CP3s and injectors prematurely...
I keep trying to emphasize this when guys just want to run the stock AD and FASS filters with an engine bay filter deleted. Tough to get people to understand how sensitive CR fuel systems are to contamination.