Using this S&B intake replacement filter is easy. First, make sure your engine is turned off and cooled down. Remove the old filter from your S&B intake. Then, simply install the new filter in its place. For the cleanable filter, if you drive mostly on city streets and highways, clean it with the S&B Cleaning Kit regularly to keep it in top shape. When cleaning, follow the instructions on the cleaning kit. For the dry filter, if you're in a dusty area, use compressed air to blow out the dust every once in a while. But remember, once it's worn out, you need to dispose of it. Always buy this filter from an authorized dealer to get the Million Mile Warranty. And make sure to use it on the right vehicle and under normal driving conditions as described.