The WIX is a high quality paper filter.....not 'high flow'.....I'd compare the price of this to the OE filter. I'm bummed that the Amsoil air filter is not offered for our models (especially the ES, because the Camry would use the same one), but I will stay away from K & N (and others like it) because I find the re-oiling is a pain.
Did you contact Amsoil to see if they have any plans to bring this filter to market?
I don't know of any other 'high flow' filters out there that can just be vacuumed & re-installed. If anyone else does, please let us know. :)