ARMYTRIX Ceramic Coated Sport Cat Main Pipe w/200 CPSI Catalytic Converters Audi S4 S5 B9 2017-2020

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.