Milltek Cat-Back Exhaust Audi S6 C7 2012-2018, S7 4G 2012-2018, with primary muffler, resonated, quad GT100 polished tips

Milltek Sport exhaust system for Audi S6 C7 / S7 4G

Does the factory sound of your Audi S6 C7 / S7 4G leave you wanting more? This Milltek Sport stainless steel exhaust system is the most requested upgrade among owners: more presence, a true sound signature, and build quality that lasts.

Technical specifications

• Milltek part number: SSXAU444
• Part type: Exhaust system
• Configuration: resonated (with mid resonator), with valves
• Detail: With primary mufflers and mid resonator, quad GT100 polished stainless steel tips
• Tube diameter: 70 mm (2.75 inches)
• Outlets: 4 GT100 outlets, 100 mm
• Tip finish: polished stainless steel
• Fitting information: With valves. Note: some 2016 and newer models require an extension of the valve wiring on a rear muffler.
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• Audi S6 C7 4.0 TFSI (Quattro, 2012-2018)
• Audi S7 4G 4.0 TFSI (S-tronic, Quattro, Sportback, 2012-2018)

Not sure about compatibility with your vehicle? Contact us with your VIN before ordering.

Our most frequently asked questions

• Highway drone? It is the number one concern on forums. This version keeps a resonated mid section: the sound stays full under acceleration, while the exhaust remains unobtrusive at steady cruising speed, ideal for daily driving.
• And the neighborhood in the morning? The valves are controlled as on the original: exhaust closed and quiet on startup or in comfort mode, fully open in sport mode.
• Fitting: the system uses the original mounting points. A workshop equipped for the job typically fits it in one to two hours.

Why choose Milltek Sport?

A reference among European tuners, Milltek Sport tunes each of its systems directly on the vehicle. Mandrel bends, careful welds and aerospace-grade stainless steel ensure a system that lasts and sounds right.

Further reading

• Resonated or non-resonated cat-back: which one to choose for your car?
• Valved exhaust systems: how they work and should you keep the valves?