The Akrapovic Sound Kit for 2021+ Audi RS3 (8Y) Sportback and Sedan lets drivers switch exhaust behavior from the cockpit, using a receiver and actuators to open or close valves and a Sound Remote Controller to regulate sound modes. This optional kit alters the system's approved status—using it with the evolution system removes ECE type approval—so fitment and local regulations should be considered.
Akrapovic 2021+ Audi RS 3 (8Y) Sportback / Sedan Sound Kit