The ornamental design for an airintakesystem with a ribbed airbox, as shown and described.
FIG. 1 is a left-front perspective view of an air intake system with a ribbed airbox showing our new design.
FIG. 2 is a front elevation view thereof.
FIG. 3 cross-section view of the air intake system of FIG. 2 taken along 3-3.
FIG. 4 is a left side elevation view thereof.
FIG. 5 is a right side elevation view thereof.
FIG. 6 is a rear elevation view thereof; and,
FIG. 7 is a bottom plan view thereof.
Broken lines in the attached drawings are included for the purpose of illustrating portions of the air intake system with a ribbed airbox and form no part of the claimed design.