ECOGARD XA10421 Premium Engine Air Filter Fits 2015-2017 Ford Mustang COMPATIBLE with 2015-2017 Ford Mustang. IMPROVE PERFORMANCE by changing your vehicle's air filter at least every 12,000 miles (or as recommended in your car owner's manual); to ensure your vehicle's engine has the clean and efficient air flow it needs for fast acceleration and long term power. AVOID INCREASED ENGINE WEAR caused by dirty air intake filters that may allow damaging particles to get into the engine. FACTORY FIT FOR EASY INSTALLATION. Replaces: Motorcraft FA1918, Purolator A48156, Premium Guard PA8156, OEM FR3Z-9601A. SPECIFICALLY ENGINEERED AND TESTED for Ford OE (original equipment) engine air filter's fit, form, and function.