Audi is one of the most favourite cars due to its performance and good looks. However, the owner of AUDI A4 S LINE TDI wanted a transformation with some enhanced looks and tune-up. So, we did an amazing job on this car to make it best-sounding as well. We designed a cat-back exhaust system for it and paired up the upgrade with stylish tips. This car come with a pretty large gap between its tips, so we designed and fabricated our special custom tips in this vehicle. These oval-shaped tips are 6.4 inches and are undoubtedly stunning. We fabricated a new clamp, a DPF filter with 2.5 inches downpipe for better airflow. The results came out amazing and made our client satisfied! The custom job done by our professional engineers transformed the sound of this vehicle and gave it a subtle yet loud sound to compliment the looks of this vehicle.