Can you provide links to these makers and the engineering data sections of their application books?
I'm curious how they rate against a Donaldson, Mann & Hummel, or Fleetguard air filter.
I pulled my 90% figure from previous research on K&N filters, but they took that number off the website since then.
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.
