Review on ECOGARD XC35509C Premium Cabin Air Filter with Activated Carbon Odor Eliminator for BMW 528i (1997-2000), 530i (2001-2003), 525i (2001-2003), 540i (1997-2003), M5 (2000-2003) by Zach Flores

Works and works well! Some will review this product and claim that it was "so tight I had to trim the edges and stuff the damn thing in place!" Then I gave up!" Don't believe that and don't try to install new cabin filters. Yes, the seal is tight when installed, but isn't that what you want from an air filter? And one more thing: I could use the materials, these cabin filters are made of are no different than those that came before. Would you like to save money? Here you go.