Carbon Fiber Subaru STI Gurney Flap 2015-2021 stance 5” with 345/25/20 profile tires

5” with 345/25/20 profile tires

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Carbon Fiber Subaru STI Gurney Flap 2015-2021 stance 5” with 345/25/20 profile tires***Fit Factory Spoiler Only*** These are super lightweight, made in carbon fiber using the pre pregnated "dry" carbon process, and conform perfectly to the contours of the GTC series 3D airfoils. They are easily attached using the included double sided tape. Gurney flap is a small perpendicular tab mounted at the trailing edge of a wing. Its primary purpose is to increase downforce by enhancing the pressure differential across the airfoil. Gurney flap