ARMYTRIX have created an exhaust for the 2014 Audi R8 V8 Coupe and Spyder that makes one heck of a noise! Check out ARMYTRIX now: http://www.armytrix.com
The titanium valvetronic exhaust system comes complete with wireless valve control with 3 modes (ON, OFF, AUTO), and even in auto the user can control the rpm at which the valve will open. The exhaust weighs a mere 8.9kg compared to the 31kg of the stock system but it's also the stronger titanium material, but most importantly just listen to it!