Yoshimura Alpha Signature Series Slip-On - Carbon Fiber Muffler 11600EM220The applications for the Signature Series line cover the entire powersports spectrum, including many off road applications. All Signature Series components are tested, documented, and marked as required by federal and state regulations. CARB EPA tail pipe emissions compliant All applications are marked with appropriate EPA noise emissions labels Certified by an independent laboratory for EPA noise compliance One look at an Alpha system and you know it