Akrapovic Titanium Slip-on Silencer YZF-R1The Akrapovic slip on exhaust is simple to install and a direct replacement. The WSBK style silencer with carbon heatshield dramatically improves your bike's visual appearance, whilst the exhaust itself gives more power, more torque, and less weight. All parts required for fitment are included (brackets fittings link pipe etc.) with full fitting instructions. This is developed to fit without fuel modification, and give you the unique Akrapovic racing