https://www.yamaha-motor.eu/kv/en/accessories/accessories-overview/pdp/gytr-akrapovic-trackday-mid-muffler-system-90798-33324-00/
GYTR Akrapovic Trackday Mid Muffler System - Accessories - Yamaha Motor
Specially developed system to fit OEM Titanium headers, while increasing horse power and reducing noise levels.
mid mufflersystem accessoriesgytrakrapovictrackday