Euro 5-approved slip-on exhaust silencer made of stainless steel, precision-manufactured. Chrome-plated finish. Diameter 114 mm. With “double ring” end caps made of Ergal (aluminum 7075) for a style that matches your motorcycle. Complete with catalytic converter and removable dB killer. Note: Approval is valid only for standard engines of the models and model years specified in the product descriptions. Removal or modification of the standard dB killer will void the approval.