AWE Touring Edition Exhaust for Audi C7.5 A7 3.0T - Quad Outlet, Chrome Silver Tips3015 42070 Sound. Perfected. AWE Tuning 180 Technology: 180 Technology is AWE Tunings proprietary sound cancellation technology. Its why youll love this system. As exhaust gases exit the 3. 0T engine and flow into an AWE Tuning 180 Technology equipped resonator, they pass through strategically located ports and into reflection chambers. Sound waves, carried by these exhaust gasses, bounce off the walls of the reflection chambers. By controlling the