Quote: Air filters are super expensive to test since it requires a giant flow bench. A 14x6 K&N probably flows 2000 cfm at a reasonable depression so it would require a monster flow bench to test. Not too many people have access to that type of equipment.
Thats the thing... when I was working I used a bench that had either a 20hp or it might have been a 35hp electric motor to drive the bench... I have no idea what it could move at max(air flow) but it sure did get noisy... it was either a 6" or 8" throat that we would mount the filter housing on(different fixtures) for all the different shapes and sizes
