CUSCO Front Strut Tower Bar For NISSAN 09 13 Cube Z12 NZ12 Type OS eBay Cusco Type OS Front Upper Strut Bar 1989 1994 Nissan 240sx S13 CUSCO Rear Strut Tower Bar TYPE OS (Oval Aluminum) for 1969 1973 Datsu CUSCO Front Strut Tower Bar For NISSAN 09 13 Cube Z12 NZ12 Type OS eBay. 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 and shocks, not the chassis. Now the springs and shocks can do their jobs more effectively and efficiently. Cusco bars utilizes a tubular center bar with powder coated blue bases which are adjustable. Installation is quite easy with the adjustable ends on your 1989 1994 Nissan 240sx S13.