Here...
http://www.bobistheoilguy.com/airfilter/airtest1.htm
I use the K&Ns in my car mostly because it's cheaper than buying paper for the Subarus and I want all the air I can get in the Vette. Subaru OEM paper filters are about $15 each and the K&N was $23. It pays for itself in less than two years, and I've owned one for 9 and the other for 7. A single $10 recharge kit is still going strong.
[RICHR]
http://www.bobistheoilguy.com/airfilter/airtest1.htm
I use the K&Ns in my car mostly because it's cheaper than buying paper for the Subarus and I want all the air I can get in the Vette. Subaru OEM paper filters are about $15 each and the K&N was $23. It pays for itself in less than two years, and I've owned one for 9 and the other for 7. A single $10 recharge kit is still going strong.
[RICHR]