A filter element comprising: (a) a filter arrangement comprising a filter media pack having a dirty air inlet and a clean air outlet, wherein: (i) air flowing through the clean air outlet flows in a first axial direction; and (ii) the clean air outlet defines a filter arrangement cross sectional area; (b) an elbow having a first end constructed to extend from the filter arrangement clean air outlet, a second end wherein air flowing through the second end flows in a second axial direction, and an air flow enclosure extending from the elbow first end to the elbow second end, the air flow enclosure comprising: (i) an air deflector constructed to direct air from the first axial direction to the second axial direction, wherein the second axial direction is different from the first axial direction; (ii) an interior volume between the elbow first end and the elbow second end; and (iii) a receiver end being constructed to fit between a secondary filter element and a portion of an access cover, the receiver end including the air deflector as a part thereof, and including a flat portion being provided recessed from an outer portion of the air flow enclosure that diverts air flowing from the elbow first end to the elbow second end, and the receiver end including a recessed portion, and a projection portion, the recessed portion being located between the flat portion and the projection portion and being provided with an outer surface having a serpentine surface shape including alternating outwardly curved, concave sections and inwardly projecting convex portions; (c) a filter element seal member located on the elbow second end, wherein the filter element seal member is constructed to seal to a clean air intake, the filter element seal member located on the elbow second end defining a seal member cross sectional area; and (d) ratio of the seal member cross sectional area to the filter arrangement cross sectional area is at least 0.5. (a) a filter arrangement comprising a filter media pack having a dirty air inlet and a clean air outlet, wherein: (i) air flowing through the clean air outlet flows in a first axial direction; and (ii) the clean air outlet defines a filter arrangement cross sectional area; (i) air flowing through the clean air outlet flows in a first axial direction; and (ii) the clean air outlet defines a filter arrangement cross sectional area; (b) an elbow having a first end constructed to extend from the filter arrangement clean air outlet, a second end wherein air flowing through the second end flows in a second axial direction, and an air flow enclosure extending from the elbow first end to the elbow second end, the air flow enclosure comprising: (i) an air deflector constructed to direct air from the first axial direction to the second axial direction, wherein the second axial direction is different from the first axial direction; (ii) an interior volume between the elbow first end and the elbow second end; and (iii) a receiver end being constructed to fit between a secondary filter element and a portion of an access cover, the receiver end including the air deflector as a part thereof, and including a flat portion being provided recessed from an outer portion of the air flow enclosure that diverts air flowing from the elbow first end to the elbow second end, and the receiver end including a recessed portion, and a projection portion, the recessed portion being located between the flat portion and the projection portion and being provided with an outer surface having a serpentine surface shape including alternating outwardly curved, concave sections and inwardly projecting convex portions; (i) an air deflector constructed to direct air from the first axial direction to the second axial direction, wherein the second axial direction is different from the first axial direction; (ii) an interior volume between the elbow first end and the elbow second end; and (iii) a receiver end being constructed to fit between a secondary filter element and a portion of an access cover, the receiver end including the air deflector as a part thereof, and including a flat portion being provided recessed from an outer portion of the air flow enclosure that diverts air flowing from the elbow first end to the elbow second end, and the receiver end including a recessed portion, and a projection portion, the recessed portion being located between the flat portion and the projection portion and being provided with an outer surface having a serpentine surface shape including alternating outwardly curved, concave sections and inwardly projecting convex portions; (c) a filter element seal member located on the elbow second end, wherein the filter element seal member is constructed to seal to a clean air intake, the filter element seal member located on the elbow second end defining a seal member cross sectional area; and (d) ratio of the seal member cross sectional area to the filter arrangement cross sectional area is at least 0.5.