https://autotalent.com/collections/remus The REMUS Axle-Back sport exhaust L/R (without tips), with 2 integrated valves (original servo motors must be refitted). BMW M3 offers a significant increase in performance and torque due to reduction of back pressure and flow optimization. Less weight and the well-known sonorous REMUS sound are additional features, which distinguish the REMUS sport exhaust from the stock exhaust.