Muffler Pc4 Universal S/A 040633Universal Powercore 4 Spark Arrestor MufflerPowercore 4 muffler design for custom 4 stroke applications Developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is usable and compatible with every style of riding Aluminum construction and stainless steel Hi Flo endcap makes for the perfect balance of performance and strength Comes with assorted mounting hardware for do it yourself