"Refresh, renew and restore your BBK air filter to like new with this BBK Cold Air Kit Air Filter Cleaner & Re-Oiling KitMake your filter look and perform like new, simply spray on the cleaning solution and allow to rest for a few minutes to do its work - then rinse off the dirt and debris with a water hose - then allow the filter to air dry completely and then finally re-oil the filter with the supplied BBK blue oil and wipe off any excess oil with a paper towel. Now your filter looks like new again and is ready to perform like new again and last thousands more miles."