The catback system is topped off with our signature 3" beveled exhaust tips. The tips sport laser etched AWE Tuning logos and are double walled to ensure a mirror polish even under hard usage. The system has multiple slip joints with high quality t-bolt clamps, to allow optimal adjustment.
The AWE catback systems will mate up to the stock downpipe, and the any other downpipe will mate to our catbacks or any other catback that is designed to mate up to the factory downpipe.
Why did AWE choose 2.5 inch and not 3.0 inch diameter for their A3 exhaust? AWE first prototypes of this system were indeed 3.0 inch, but they found that the effort it took to move the large mass of air in the 3.0 inch system at lower rpms resulted in a loss of torque with very little offsetting gain up top. Take a look at the AWE 3.0 inch prototype dyno sheets here and see why a 3.0 inch system is not appropriate for this car.
AWE Tuning A3 FWD Cat Back Exhaust
