Yes it will if you are on a high speed track I.e several corners greater than 70 mph . My friend picked up a full 2 seconds a lap (1:20 vs 1:22)adding a 69 inch Kognition rear wing on his stock power S2000 at Roebling road . Adding several hundred pounds of downforce to a short wheelbase car can make a huge difference in stability at speed. Bc he cornered 10 mph faster leading onto the front straight he actually achieved a higher top speed .
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