I finally got tired of trying to figure out what was special about Wix's new 57002 filter specfic for only Mazda Skyactiv engines. I know it doesn't have an ADBV and has a 15 micron rating, but that doesn't tell me much. There has to be something special in order for Wix to go and create a new filter while everyone else didn't. I emailed Wix Tech Support and asked for information. I'll post anything I get back in this thread.