The Milltek Sport Cat-back exhaust system is dedicated to the Audi S4 B9 3.0 TFSI.
It is made entirely of stainless steel and finished with 4 tailpipes. The exhaust is available in a louder Non-resonated version and a quieter Resonated version. All available versions feature end silencers equipped with valves controlled from the onboard computer.
The system is compatible with the factory catalytic converter. Installation does not require any modifications.
Active Valve Control – a module available as an option that allows full control over the exhaust valves. With it, it is possible to change the factory operating parameters of the valves and configure them according to the driver's preferences.
Milltek Sport is one of the largest manufacturers of sports exhaust systems for passenger cars in the world. The company is present in over 90 countries worldwide with its products.
Based on nearly four decades of continuous research and development, this manufacturer's offerings are constantly expanding to meet the high demands of owners of brands such as Audi, Volkswagen, Porsche, Ford, BMW, and Alfa Romeo.
The company's heritage from motorsports such as the BTCC series, Volkswagen Racing Cup, and participation in endurance racing allows for the creation of exhausts that truly work, enabling power increases and sound improvements in various car models.
All exhaust systems offered by Milltek Sport are designed, developed, and hand-manufactured in the UK by the most qualified specialists. Only T304 stainless steel is used for the production of all exhaust system components, ensuring virtually infinite product lifespan.
Precise bending of pipes and their increased diameter translates to optimized exhaust flow and maintenance of car power without losing torque in the mid-range RPM. All Milltek Sport exhaust systems undergo detailed acoustic testing to ensure a sporty sound without the resonance effect (known as Drone).
Warranty
All Milltek Sport Cat-back exhaust systems are covered by a lifetime anti-corrosion warranty and warranty against manufacturing defects. Sports catalytic converters and downpipes are covered by a 2-year or 80,000 km warranty. The warranty applies only to the first owner of the exhaust system.
Sound Versions
Most Cat-back exhaust systems are available for purchase in two sound variants: Non-resonated and Resonated. The first is the louder version that provides a more sporty sound. However, it is designed for use on public roads, meaning it will not be too burdensome for daily use. The quieter Resonated versions are dedicated to customers who want to improve the car's power while maintaining the most factory-like engine sound.
Installation
All Milltek Sport products are designed to fit perfectly to a given car model. The installation of most exhausts is done on a Plug&Play basis. With each product, the customer receives all necessary accessories for installation, such as clamps and reducers. When purchasing just the Cat-back exhaust, the appropriate adapter for connecting to the factory exhaust is always included in the set.
