15-17 YAMAHA FZ07: Akrapovic Racing Full System Exhaust (Homologated/Titanium) The Akrapovic Racing Line represents a full step in the exhaust system tuning process and offers a great balance between price and optimum performance. Racing performance exhaust systems are designed for riders that demand maximum performance from their motorcycle. The systems are lighter compared to the stock exhaust system and feature exceptional production quality and increased engine performance combined with pure racing sound output. A combination of racing materials like carbon fiber for the muffler outer sleeve and for the end cap give these exhaust systems a racing touch. The Akrapovic Racing system uses stainless steel headers and mid-pipe, a durable titanium muffler and carbon fiber end cap.Oval-shaped or hexagonal-shaped canister with your choice of carbon fiber or titanium outer sleeve.Hexagonal mufflers feature a carb