a well looked after oiled guaze filters will do a very good job. just remember the harder you drive the more often you need to oil them.

These tests where they do comparo's ive seen them to, dont take em for gospel, some of the methods are questionable, some use a peice of white cloth and a 'Look" measurement to decide which filters more.

some are sponsored and conducted by companies themselves.

Just service the filter every 5k klms and it will do fine. never use too much oil or it will suck into intake coating things.

paper wont filter as good as the k's go by, as bigger and bigger holes (we are talking micron size) are punched in it by high speed particles. get a 5k air and a 5k oil filter and i bet its a different story on filtration.

paper is used by manufacturers because its cheap, and recomended by mechs because its a regular swap, and thus source of income.

and well read my signature for what i think of pod filters.

SAAS pod filter $25
Stainless steel hose clamps $5
Seeing au2mans face when it's connected straight to your throttle body, priceless.