Quote:
Originally Posted by Mark R
I pretty much threw cold water on this thread. The reality is the K&N filters let much more dirt pass through them, yet clog sooner, than a paper filter. But they initially flow more air!! So does cutting a big hole in a paper filter.
Now don't get me started on magnets on the fuel line to increase HP. Or those swirly inserts that increase intake turbulence to make more power.
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Second that! Back when I did oil samples on my WRX.... (First new car) I had a k&n type filter and was getting extremely high silicon readings as well as aluminum. Switched to a green filter, silicon levels were back at 0. Never again will I run K&N or any oil type cotton filter.