K&N's Universal Air Filters are a top - choice for a wide range of applications, including racing cars, radio - controlled vehicles, generators, snowmobiles, and tractors. No matter the angle or offset diameter of your air intake, there's likely a perfect K&N filter for your equipment. These filters feature ultra - strong molded pliable rubber flanges. The rubber flanges not only absorb vibration for a stable connection but can also stretch up to 1/16 of an inch (1.5mm) to fit between sizes. What's more, they are washable and reusable, offering long - term value. This specific part fits various Ford, Lincoln, and Mercury models from 2003 - 2011, such as the Ford Crown Victoria, Thunderbird, Lincoln LS, and Mercury Grand Marquis.















Using your K&N Universal Air Filter is easy. First, make sure your vehicle is turned off. Locate the old air filter in your vehicle's air intake system and carefully remove it. Then, take your new K&N filter and place it in the same spot, ensuring it fits snugly. When stretching the rubber flange to fit, do it gently to avoid damage. As for maintenance, it's a good idea to check the filter regularly, especially if you drive in dusty or dirty conditions. When it gets dirty, you can wash it. Use a mild detergent and warm water. Gently scrub the filter to remove dirt and debris. Rinse it thoroughly and let it dry completely before reinstalling. Remember, always keep the filter dry before putting it back in your vehicle to ensure proper performance.