Paper filters last a year?! like to see that
The K&Ns are not cheap, but you figure if you change the air filter every time you change the oil, that ads up quick.
For me that is 5-6 times a year, @ 9-10$ each, $60 just thrown away.
When for $40 more I get a life time filter, that sounds so kick ass cops will stop you just to see it up close

Just my