The air intake system on th '09 escape has not been improved by K&N, Ingen or AEM, or any other manufacturer. The '10 model year is out, therefore it must be old technology, so is the OEM state of the art? I have not been able to find a replacement air filter element for the stock one at any auto parts dealers shelf. So my question, is the filter still high tech to improve upon? In addition I have not been able to find a replacement oil filter. I do have a choice of the manufactures of the cabin air filter. I guess I will continue to use compressed air to blow off the intake filter, seize the motor due to contaminated oil, and breath easy because of a clean pollen filter.