For most street drivers the honest draw is the look and the added rear stability, not lap times. It sharpens the OEM-plus rear profile and makes the car feel a touch more settled at highway speed and in crosswinds. Pairing it with the Efficiency Trunk Spoiler is where the measured numbers really show up. On its own it is still a clean, reversible way to add real function while improving how the back of the car reads.
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