aFe Power 11-10133 Magnum FLOW OER Pro DRY S Air Filter for Ford Focus Oil-Free Pro DRY S Filter For Maximum Convenience, OE Direct Replacement For Easy Installation 3-Layers Of Progressively Finer Porosity Synthetic "Oil-Free" Media For High Filtration Efficiency, Washable & Reusable A/F For Multiple Cleaning Cycles Made with 100 percent Polyurethane Top and Base For Protection, 20mm Deep Pleats For Longer Service Cycle 17 percent Flow increase than stock, Flow (CFM at 1.5" H2O) 219 CFM for Ford Focus 12-14 L4-2.0L/2.0L (t); Manufactured and Assembled in the USA