Cusco Type OS Upper Strut Bar (Front) - Subaru WRX / STI 2015+Note: Image shown may not be for your specific vehicle. Cusco is a high performance Japanese suspension tuner that offers a Strut Tower Bar for a wide variety of Japanese vehicles. Just as other strut tower bars, it will reinforce the structural integrity of the vehicles chassis. This reinforcement will prevent chassis flexing under severe stress from hard cornering. By reducing chassis flexing, we are able to divert the cornering force to the springs