ARMYTRIX Rear Diffuser For Quad Tips Audi A4 A4 Avant 2.0L TFSI B9 2016-2020

To enhance your vehicle by adding the ARMYTRIX exhaust system to increase power, reduce weight, and improve sound. This precision-made performance system delivers more power, especially in the low and mid rev range, the effect on the sound is significant, adding a deep resonant sporty sound, but at the same time neutralizes the annoying frequencies in the most critical rpm range.