Akrapovic Evolution GP Exhaust System Yamaha R6 Features: Full titanium headers and mid-pipes 30-40 lighter than a stainless steel exhaust system A combination of beautiful machine and hand welds Integrated titanium exhaust hanger CNC machined muffler inlet cap Optimized to maximize lean angle All carbon fiber parts are produced in-house Air-tight quality controlled production means your exhaust will be perfect High-quality, silicon-shielded stainless steel exhaust springs