AWE Tuning B8 / B8.5 S5 Cabrio Touring Edition Exhaust - Non-Resonated - Diamond Black TipsAWE's 3. 0T exhaust systems represent the most difficult, yet most rewarding, exhaust development projects in our company history. The 3. 0T systems have paved the way for future exhaust technologies that can now be found in most every AWE Exhaust product. AWE spent considerable time and effort during development to achieve remarkable civility when idling and at part throttle cruising, while also producing a war cry wail when full throttle is applied.