Yoshimura RS-3 Bolt-On Exhaust Kawasaki ZX6 / ZX6RR 98-02 / ZZR 05-08 The RS-3 is synonymous with the Yoshimura name and has been member of our product line for years. It has proven itself as one of our signature exhaust systems featuring an Oval-Sleeve design and trick aluminum endcap. Easily installed, this Bolt-On system will bolt right in place of your stock exhaust in just minutes. Bolt-Ons are a great way to get the quality and performance you expect from Yoshimura. This system includes an RS-3 muffler, all installation hardware, and detailed step-by-step instructions to get you rolling quickly. NOTE Please check local laws before purchasing. Some modifications may be prohibited in some states.