Milltek Cat-Back Exhaust Audi S6 C7, S7 4G, with primary mufflers, non-resonated, quad GT100 polished tips, without valves

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

On the Audi S6 C7 / S7 4G, the factory exhaust is designed for quietness and regulations. This Milltek Sport stainless steel exhaust system gives the engine its voice back with a refined, full, deep sound, the one that built the English brand's reputation.

Technical Specifications

• Milltek Part Number: SSXAU331
• Part Type: Exhaust system
• Configuration: non-resonated (no resonator), valveless
• Details: With primary mufflers and no resonator - quad GT100 polished stainless steel tips
• Pipe Diameter: 70 mm (2.75 inches)
• Outlets: 4 x 100 mm GT100 tips
• Tip Finish: polished stainless steel
• Installation Notes: Valveless - Valve delete module recommended (SSXAU405)
• 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 fitment for your vehicle? Contact us with your VIN before ordering.

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. On the other hand, a slight drone may appear at certain engine speeds on long journeys. If you do a lot of highway driving, compare it with the resonated version.
• Valveless: the exhaust is loud at all times. On a vehicle fitted with factory valves, a valve delete module may be needed to avoid a warning light (see installation notes).
• Installation: the system uses the factory mounting points. An equipped repair shop typically fits it in one to two hours.

Why Choose Milltek Sport?

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

Learn More

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