The two lower openings are 16" by 3" each, for 96 square inches.
The top is roughly 24" by 6", for ~144 square inches.
Together it's roughly 240 square inches, of which I'm blocking roughly 70 square inches with the left grille block in the photos currently, or 29-33% of the total grille area.
I ought to be all right.
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2012 Chevrolet Cruze Eco 6MT
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