so far, its the best exhaust ever made. it has a nice sound, lightweight and boost my R6 performance. Strongly recommended... pricey but worth the money.
This is the flagship of the Akrapovič exhaust system range, used and tested by the top factory teams in motorsport racing. It is simply the finest exhaust system available. Each model is unique and dedicated to maximizing the performance of an engine, while reducing overall weight for optimized handling of the whole motorcycle. It is made entirely of titanium, with the muffler outer sleeve in carbon fiber.
The Akrapovič Evolution system is designed for riders who want to get the absolute maximum out of their exhaust system. It delivers power and torque increases which experienced riders will be able to turn to their advantage on the track, and also offers top production quality and great looks.