ECOGARD XA6312 Premium Engine Air Filter Fits 2007-2012 Acura RDX COMPATIBLE with 2007-2012 Acura RDX. 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 CA10578 Purolator A26312 WIX 49123 OE 17220-RWC-A00. SPECIFICALLY ENGINEERED AND TESTED for Acura OE (original equipment) engine air filter's fit, form, and function.