After over three years in development and testing we are pleased to announce the RS-12 is here! With the help of incredibly talented factory sponsored athletes, technicians, devoted engineers and a will to raise the bar, our RS-12 has now arrived. We considered all the details when it came to the RS-12. One look and you can see it's like nothing else on the market. As you get closer you will notice the details in every place on our new dirt bike system, from the matte carbon fiber end cap with decal inlays to the precise machined joints, this system is next level. Features: Aggressive, asymmetrical shaped RS-12 profile maximizes muffler volume, manages sound, adds power and provides more clearance for tire and brake caliper. RS-12 systems utilize precision machined joints. Works-look matte carbon fiber end cap with intricate details. New carbon fiber cap eases servicing as compared to other sandwich mounting designs most commonly found in the industry. New patent pending Precision Taper Fit (PTF) insert ring Tapered muffler body inlet design. Exhaust only, bike is NOT included