Eventuri BMW X3M/X4M Panel Filter Replacement Set (F97/F98)Eventuri F9X Replacement panel filter for your X3M X4M is a great option if you want to help your engine breathe better. Eventuri have redeveloped the OEM panel filters using a high flow non woven filtration mesh which is encased in a highly durable stainless steel mesh. The filtration element allows for less restriction while maintaining suitable filtration properties. The mesh is captured in a Urethane surround which is very stable at high