Audi RS3 (2015-2023) Milltek Secondary Cat Bypass, Non OPF - SSXAU588

Mandrel bending ensures constant radius bends for optimised air flow, and bore diameters are carefully enlarged over stock to ensure ultimate performance without the loss of mid-range torque. All of the Milltek exhaust systems endure a comprehensive acoustic development process to deliver a tone that is sporty and crisp, without ever inducing NVH, drone or cabin resonance.