Cat-back Milltek Audi RS4 B8 4.2 FSI V8 450 hp 2012-2015 - ECE Homologated - with primary muffler, resonated

Milltek Sport exhaust system for Audi RS4 B8

Not happy with the stock sound of your Audi RS4 B8? This Milltek Sport stainless steel exhaust is the most requested option among owners: more presence, a true sound signature and build quality that lasts.

Technical specifications

• Milltek part number: SSXAU336
• Part type: Exhaust system
• Configuration: resonated (with resonator), with valves
• Detail: ECE homologated - with primary mufflers and resonator
• Tube diameter: 70 mm (2.75 in.)
• Exhaust tips: original exhaust tips retained
• Installation information: With active valves
• Material: aerospace-grade stainless steel
• Homologation: ECE / EC homologated
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• Audi RS4 B8 4.2 FSI V8 450 hp (Quattro, Wagon, 2012-2015)

Not sure it fits your vehicle? Contact us with your chassis number (VIN) before ordering.

Most frequently asked questions

• Highway drone? It is the number one concern on forums. This version keeps a resonator: the sound stays full under acceleration, while the exhaust remains calm at steady cruising speed, ideal for everyday driving.
• And what about the neighbors in the morning? The valves are controlled as on the original system: the exhaust stays closed and quiet at startup or in comfort mode, and fully open in sport mode.
• Homologation: this system is ECE / EC homologated, a real advantage for driving with peace of mind and passing the technical inspection.
• Installation: the system uses the original mounting points. A well-equipped repair shop typically fits it in one to two hours.

Why choose Milltek Sport?

Milltek Sport designs and manufactures its exhausts in England, using mandrel-bent tubing to preserve the inner diameter and a fitment developed for the vehicle. The result: a clean installation with no adaptation required, and a sound tuned to stay pleasant for daily driving.

Further reading

• Resonated or non-resonated cat-back exhaust: which one should you choose for your car?
• Valved exhaust systems: how do they work and should you keep them?
• Exhaust systems and the technical inspection in France