AFE's Air Filter Restore Kits are the best way to maintain AFE Air Filters. These restore kits and cleaners are specially formulated to remove debris and release dirt without harming the air filter or its efficiency. AFE's highly refined air filter oil is also less likely to foul MAF sensors than competitor oil. Available as single cleaner or cleaner and oil kit for everything needed to keep your filter in top-notch shape and performance output.