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Originally Posted by birchman2
Could you keep us posted with the results of your MPG once installing the filter? I've used them in all my car until installing one in my Scion XB the gas mileage went down. Took it out and it went back to normal. My other two cars I didn't notice any difference.
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Could it have been possible that your gas mileage went down because driving it harder due yto the install? I know people who install parts to increase FE and power but burn more fuel than before the part install because of the horsepower increase or the psychological factor of thinking 'I have more power to use'. Just a thought. Every K&N system/filter I have used I have found in increase in FE, however if I put my foot in it more ofcourse I'll lose that FE.