HMF has some of the sickest Exhaust systems on the market, they look incredible, sound great and come with several awesome options to choose from. The Performance series has an unrestricted core which allows free flow and an even power gain through the entire performance flow, and it provides greater horsepower and a killer sound. In fact, depending on your machine, you could experiance anywhere from a 2-10 db increase, which is the trademark of this pipe, the awesome sound! Not only does the performance series create a great roar, but its lightweight Aluminum body also has stylish finishes, from a brushed or polished finish, to a red, yellow, blue, black, and other colors depending on your machine. So not only are you going to experiance sound difference, greater horsepower and torque, but your going to look dang good doing it!