Foam vs paper air filters..., Which is the best? Please say why? Options

[second wind]

Hello Teener World,
I have been a suspended oil foam filter fan since my motocross days (50 years ago) but just bought a brand new Mann paper air filter. My K&N is looking quite worn out and my flaps guy said why bother doing the cleaning and oil anymore? Just buy a quality new paper filter and be on your way. So I did and would love to hear what others have to say about the topic....thank you very much to all!!
gg

[emerygt350]

I used an ancient KN on my old opel gt in the last century, I put one on my mustang and one my 914. I find it let's the engine breath better across the board but of course the value increases at rpm. Cleaning them is easy, maybe every three or 4 years under normal circumstances. I never buy new filters. Is the filtration better or worse? No clue, don't really care. Never had an engine fail because of my air filter. I have had crappy paper filters that choked off an engine though. Paper filters vari in quality greatly and to get the flow of a kn you need a much bigger filter.

That said, the box design in the opel and the 914 makes me cringe. On the opel I went with the normal stack and didn't have to use the box (wouldn't fit on a Weber anyway). On the 914 you don't have a ton of choices on the d-jet. Air has momentum and a 90 degree turn like that helps nothing.

Engine masters did a cool comparison this year if you have motortrend. However they couldn't measure how well they cleaned the air, just the effect in power from various papers and a couple of cotton oil filters.