It's good practice to occasionally check your air filter to make sure it is in proper working condition. If your filter is caked in debris and dust, its a good time to replace it with the S&B Intake Replacement Dry Filter. Sometimes, simple as best, and this intake filter for the S&B intake system is as simple as it gets. With a replacement rate of 15,000 miles, this filtration media is washable and is designed to keep that engine humming for a good while. Be sure to pick up a few of these right here at Alligator Performance!