Cat-Back Milltek Audi A4 B9 2016-2025, ECE Homologated, Primary Muffler, Resonated, Dual GT100 Black Cerakote Tips

Milltek Sport Exhaust System for Audi A4 B9

Is the factory sound of your Audi A4 B9 leaving you wanting more? This Milltek Sport stainless steel exhaust system is the most requested solution among owners: more presence, a true sound signature, and build quality that lasts.

Technical Specifications

• Milltek Part Number: SSXAU607
• Part Type: Exhaust system
• Configuration: resonated (with resonator)
• Details: ECE homologated, with primary muffler and resonator, dual GT100 black Cerakote tips
• Tips: 2 GT100 tips, 100 mm
• Tip finish: black Cerakote (high-temperature ceramic)
• Material: aerospace-grade stainless steel
• Homologation: ECE / EC homologated
• Manufacturer: Milltek Sport (United Kingdom)

Compatible Vehicles

• Audi A4 B9 2.0 TFSI (Quattro, Sedan, Avant, 2016-2025, no DPF)

Not sure about fitment for 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 system remains calm at steady cruising speed, ideal for daily driving.
• 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 usually fits it in one to two hours.

Why Choose Milltek Sport?

Milltek Sport designs and manufactures its exhaust systems in England, using mandrel-bent tubing to preserve internal diameter and a fit developed on the vehicle. The result: a clean installation without modifications, and a sound tuned to stay pleasant for everyday driving.

Going Further

• Resonated or non-resonated cat-back exhaust: which one should you choose for your car?
• Exhaust System and Technical Inspection in France