Cat-Back Milltek Audi S6 C7, S7 4G - With Primary Mufflers and Non-Resonated - Quad GT100 Polished - With Valves

Milltek Sport Exhaust System for Audi S6 C7 / S7 4G

Replacing the original exhaust with a Milltek Sport exhaust system brings back the character that the factory exhaust mutes on your Audi S6 C7 / S7 4G: a rounder tone at idle that opens up cleanly through the rev range, with no gimmicks.

Technical specifications

• Milltek part number: SSXAU443
• Part type: Exhaust system
• Configuration: non-resonated (no resonator), with valves
• Details: With primary mufflers and no 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 later 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 (chassis number) before ordering.

Our most frequently asked questions

• Resonated or non-resonated? This version is non-resonated (no resonator): it is the most expressive, with more crackle on lift-off. The trade-off is that a slight drone can appear at certain engine speeds on long trips. If you do a lot of motorway driving, compare it with the resonated version.
• What about the neighbors in the morning? The valves are controlled as on the original: closed and quiet on startup or in comfort mode, fully open in sport mode.
• Installation: the system uses the original mounting points. A workshop with the right equipment 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-bent tubing, clean welds and aerospace-grade stainless steel make for a system that lasts and sounds right.

Going further

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