Kind of funny... I changed my oil today and I think this thread jinx'd me because I had a hell of a time getting my K&N filter off! Unfortunately when I went to get a new filter they were out of the K&N's so since the choices were slim I got one of Frams X2's. Will see how it does. The box (if you can rely on what it says) says it has a 96% flow rate and a fully synthetic material that is suppose to flow and filter better!