Euro 3/4 homologated chrome plated stainless slip-on exhaust mufflers. 100mm diameter. With 'Double Ring' Ergal (aluminum 7075) end caps for the style in line with your bike. Precision made from stainless steel that is chrome plated. Complete with catalyst converter and removable dB killer. Note: Homologation is valid for unmodified stock bikes, for the specific models and model years as mentioned in the product descriptions. Removing the standard Db killer for the optional 708858 Racing Db killer will void the homologation.