ECOGARD XA4470 Premium Engine Air Filter Fits Acura Legend / Sterling 827, 825 COMPATIBLE with 1986-1990 Acura Legend, 1989-1991 Sterling 827, 1987-1988 Sterling 825. 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: FRAM CA6308 Purolator A14470 WIX 42219 OE 17220-PH7-661. SPECIFICALLY ENGINEERED AND TESTED for Acura, Sterling OE (original equipment) engine air filter's fit, form, and function.