S&B Filters High Performance O.E. Replacement Air Filter that can be used to easily replace your existing paper filter on applications using the factory air filter box assembly. The S&B part number is W-0940 and is interchangeable on applications that use Motorcraft part number is FA-1611. These are washable, reusable and come with a 1,000,000 mile limited warranty by the manufacturer. Shipping is via FedEx Ground Home Delivery based on your zip code and will show the amount in checkout. USPS Air Mail is available for customers outside of the continental US. Email me for shipping charges.