General statement... If these oil type filters were so great, why dont you see the high dollar real world working diesel equipment running them (think , cat, deere, case, etc)? That's where you have real need for horsepower and reliability for expensive equipment and maintaining wet filters is a nightmare.
Quoting airflow is questionable because you can only pull so much air volume on a naturally aspirated diesel and a turbo can only push so much air into the engine. The engine takes what it needs.
You answered your own question. Dry filters work as well and they're throwaway when dirty. I like reusable, throwaway is easier to service.
"Naturally aspirated diesel?" Who even uses them now? A turbo forces air into the engine and the engine uses what's it's given. Diesels can take a lot of air.
