Yoshimura RS-12 Slip On Muffler 228452S320 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.

• 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.