Originally Posted by MADDOG
Are the flares painted? If so, yes you can wax them.
If they aren't painted and are bare plastic, no.
Like Michael said, it will depend on if they are painted or not. There are waxes and dressings that will work just fine on bare plastic flares if that is your case. Also, if you let any given wax sit too long, it will be a PITA to remove.