One of the components included in the tune up parts is the air filter. In your 2004 Mitsubishi Endeavor, there is an air filter working hard to keep the air intake system working efficiently. Without the Mitsubishi Endeavor Air Filter, there will be so many impurities in the air that will enter the engine for fuel burning. These impurities will affect the proper mixing of the air and fuel and this will result to the partial burning of the gasified fuel. You will be consuming a lot of petrol gasoline and yet your mileage will not increase at all. With the installation of the K&N K33332285 Air Filter, you are guaranteed of the complete burning of air-fuel mixture and you can save money on fuel consumption. It is easy to maintain the K&N Air Filter. All you have to do is to brush and clean if off of the air particles that have been embedded in it. Or, you can always purchase a new K&N Air Filter for better results. After all, it is reasonably-priced and within easy reach by many vehicle owners like you. You can visit our online site for your auto parts needs. Our web store is open to you twenty four hours a day so you will not have troubles in replacing your stock air filter.