The AWE Tuning Audi B9 S4 Track Edition Exhaust is perfect for track days or when you just want to make a statement on the street. It's aimed at car enthusiasts who love a loud, aggressive sound and want to customize their vehicle's look. The exhaust features non - resonated downpipes and straight pipe sections, with 102mm slash - cut tips. These tips are not only adjustable but also double - walled for a long - lasting mirror finish.