Milltek GPF Back Exhaust System - Audi RS3 (8Y) Saloon / Sedan System Options:Resonated System (SSXAU966) Gains of +71hp on M4

Gains of +71hp on M4 CS (460hp model)

The mounting points use the factory system

and bore diameters are carefully enlarged over stock to ensure ultimate performance without the loss of mid-range torque

It can even cause permanent damage

Milltek GPF Back Exhaust System - Audi RS3 (8Y) Saloon / Sedan System Options:Resonated System (SSXAU966) Gains of +71hp on M4Milltek GPF Back Exhaust System Audi RS3 (8Y) Saloon Sedan Pipework Diameter: 3. 15" (80mm) Available As Resonated (Quietest), Non Resonated (Louder), Race (Loudest) New Valve Motors IncludedNotes: Not suitable for Sportback Models Vehicle Fitment New Arrivals Shop By Car Audi RS3 (8Y) Exhausts Cat back systems