Review on 🔥 BMC Air Filter FM579/04: Unleash Optimal Performance and Efficiency by Matthew Nielsen

Fits a 2009 Kawasaki ER-6n with no problem. I only placed it at the bottom because I had to glue 3 strips of styrofoam which can wear out over time like the OEM filter did. I think the bottom foam strip is collecting oil from the engine breather. The document says to use "Loctite 406" but I didn't have it so I used the "3M Black Super Weatherstrip and Gasket Adhesive". I've already had to caulk the rubber and plastic in the airboxes and it worked great. The glue applied to the foam rubber is most likely not enough. This seems to be the best replacement for an OEM filter I could find and should ultimately make up for the extra cost as it will last a lot longer.