Euro 4/5 homologated. AISI 406 stainless steel. Matte black Cerakote, a 1800 °F (982°C) heat resistant ceramic coating. Performance is nothing without reliability, therefore this system is free of electronics and valves, crafted from high-grade materials, TIG-welded in Italy and engineered to last. - Deep, bass-rich tone - Aggressive racing sound at high RPM - Enhanced torque and throttle response - ECE type-approved for street-legal use in Europe - Designed in Switzerland – Made in Italy. Note: Homologation is valid for unmodified stock bikes, for the specific models and model years as mentioned in the product description. Removing or modifying the standard baffle will void the homologation. Note for optional heat shields see: - 709254 Stainless. Brushed satin. Works finish - 709255 Stainless. Black Cerakote - 709256 Stainless. Polished - 709257 Titanium. Brushed satin. Works finish Note for replacement parts see: 709266 Billet end cap. Alu / Black 709267 Homologated dB killer. Stainless 709268 Racing dB killer. Medium. Stainless 709269 Racing dB killer. XL. Stainless