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Rudy, was the K&N kit that you added the replacement filter? Or was it the new induction tube with the conical K&N air filter? I am seriously considering investing in at least a K&N OEM replacement filter for my 4.0L. Have you done any other mods to increase your mileage?

It was the whole induction tube and conical K&N filter. Other than that there are no other mods, but keep in mind it is running 215/75 r15 tires (27" in diameter).