MIVV Y.023.LXB - Exhaust For Yamaha FZ1 / FZ1 Fazer GP Steel Black The package include necessary pieces for mounting on original header pipe, approval certificate and warranty Design Made in Italy directly from MotoGP. Employment of the best materials, which are available in the market. High technology coming directly from MotoGP experience, which only few factories can offer. High reliable materials, that are the result of a long research &amp development activity. The system guarantees high power and torque performances. Its ideal for race. Shrill sound for an extreme product use. Huge weight loose unlike genuine system and better bike versatility. Popular brand in the MotoGP. Reliability of one of the main world manufacturer of OE systems.