Evolution Exhaust - Titanium - Top-of-the-range full system beautifully crafted from high-grade ultra-lightweight titanium - Its distinctive shape was developed especially for the Yamaha YZF-R1 based on Akrapovic’s vast racing experience - Increased power and torque through the whole rpm range, especially in the mid range and top end - The deep, true racing sound is perfectly tuned to match the increased performance - It offers easy-to-fit installation - For perfect performance, throttle response, and durability, special mapping developed by Akrapovic in collaboration with Rapid Bike by Dimsport is recommended

Evolution Line Exhaust System - Carbon Fiber - This is a complete system constructed from high-grade, race-proven lightweight titanium alloys - It provides an impressive increase in power across the entire rev range while also improving torque delivery - The weight is decreased by over 6 kg - The system is finished with a hand-crafted carbon-fiber hexagonal muffler – inspired by Jonathan Rea's (Kawasaki Racing Team) World Superbike–winning machine - The exhaust delivers a unique, deep, sporty sound that enhances the system’s sporty heritage - The bike’s ECU must be remapped when the Evolution Line system is installed - An optional aluminum muffler bracket to further complement the entire system