Using this cold air intake is easy. First, make sure your engine is cool. Remove the factory intake following the car's service manual. Then, install the Pro 5R Cold Air Intake in its place, using the factory seal and air scoop as before. For best results, check the filter regularly. Clean it every 10,000 - 15,000 miles or as needed. Use a filter cleaning kit made for oiled cotton gauze filters. When cleaning, be gentle to avoid damaging the mesh. Also, don't over - oil the filter as it can affect performance. Keep the intake away from water and excessive dirt to extend its lifespan.