Out of Control
Join Date: Jan 2010
location: Central NJ
Thanked 646 Times in 499 Posts
Dumb experiment – well maybe not…. I figured this thread is a good place to discuss it without high jacking it or starting yet another air filter thread.
I cleaned my K&N drop-in filter today. I also have my original OEM (redundant?) paper filter. In my house we have floor supply registers for the A/C. As an experiment I placed each filter over the same floor supply (one at a time obviously) just to see if I could feel any difference in air flow.
First, they both blocked a lot of air. Compared to what came out of the supply unblocked, both filters were very restrictive. But when I placed my hand over each filter the K&N filter felt like it let a lot more air through than the paper filter. I have no formal way to measure the CFM, but it was noticeably more and demonstrated to me that there is a significant difference in airflow for the two types of filters. Based on this test, paper filters flow nowhere near as well as the K&N drop-in filters - not even close.
If anyone else has a drop-in and a paper filter could they possibly perform the same test? It’s real easy! I’d really like to hear other’s observations. Thanks.
2012 Accord Coupe EX-L w/Nav, V6-6MT
2007 Accord Sedan EX-L w/Nav, V6-6MT (sold)