Euro5 homologated slip-on stainless steel precision-made exhaust muffler set. With Black Ceramic, a 900°C heat resistant satin black ceramic coating. 114mm diameter. With 'Revolver' Ergal (aluminum 7075) end caps for a style in line with your bike. Complete with catalyst converter and removable dB killer. Note: Homologation is valid for stock engines only, for the specific models and model years as mentioned in the product descriptions. Removing or modifying the standard Db killer will void the homologation.