Featuring mufflers and link-pipes made from high-grade titanium to dramatically reduce the overall weight, the system provides more power, lowers back pressure, enhances throttle response, and increases torque. With four valves, the first pair operates in four-cylinder mode and the second set comes into action following the driver's specifications. With an electronic device developed by Akrapovic engineers for the five standard GM modes, Weather, Eco, Tour, Sport, and Track, the system is perfectly matched to operate with the car