Replacing air filter

[DenverSteve]

This is the same speculative commentary seen in every forum on the web. That somehow K&N filters "must" be inferior because of....pick your reason. They've been tested, raced, proven - over and over again. They have never been shown to let in more of anything but air. A proven commodity to allow more airflow to your engine without negative result. Use them or not they're fine.

[Topless]

Originally Posted by DenverSteve

This is the same speculative commentary seen in every forum on the web. That somehow K&N filters "must" be inferior because of....pick your reason. They've been tested, raced, proven - over and over again. They have never been shown to let in more of anything but air. A proven commodity to allow more airflow to your engine without negative result. Use them or not they're fine.

Hey Steve,
I can appreciate that there is a lot of misinformation on the net regarding re-usable air filters. I used K&N filters for many years in off road racing and appreciated the ability to clean it between races. I chose not to use one in my Porsche because of the sensitive MAF in our cars and this ISO 5011 study on intake air filtration. YMMV
K&N air filter or OEM, why OEM is better