The most popular of the Cusco bars is the Type OS for the 2015+ Subaru WRX / STI. The classic design features a tubular aluminum oval shaft with a high polish finish. The aluminum bar possesses high rigidity due to the two different designs available. The Type 1 is pressed ribbed while the Type 2 is sectioned. Cusco has already chosen the ideal design for each application. The end plates are painted the traditional Cusco blue for the 2015+ WRX / STI and come with all the required hardware for installation. It bolts on in minutes using normal hand tools.