Yoshimura RS-3 Bolt-On - Stainless Steel , Material: Stainless Steel ZX649SO All Street Series systems are Slip-on/Bolt-on applications that do not require tampering with the vehicles emissions control system, yet still deliver that special spirit the world has come to expect from the legendary company known as Yoshimura. The Street Series exhaust offer street-legal options for almost everything on two wheels. CARB/EPA tail-pipe emissions compliant All applications are marked with appropriate EPA noise emissions labels Has not been tested for EPA noise compliance