E5-approved slip-on exhaust silencer set made of stainless steel, precision-manufactured. With chrome-plated surface. Diameter 114 mm. With “revolver” end caps made of Ergal (aluminum 7075) for a style that matches your motorcycle. Complete with catalytic converter and removable dB killer. Note: Homologation applies only to standard engines of the models and model years specified in the product descriptions. Removal or modification of the standard dB killer will void the homologation.