The PERRIN Wing Stabilizers have been designed to provide the rear spoiler with more structural rigidity to the deck of the wing, which means more downforce will be had. These have been crafted from high grade plastic, and one of the best features is the simplicity of the installation. The Wing Stabilizers are secured with 3m VHB tape, which also allows this modification to be reversed if desired. 

These are sold as a single stabilizer, however you can add as many as you please.