Audi B9 A4 Valved Sport Exhaust System

The Audi B9 A4 is the perfect entry point into the brand’s performance lineup, delivering refinement and capability in a package that appeals to a wide range of enthusiasts. While the two liter turbocharged engine is responsive and capable, the factory exhaust leaves much of its character hidden. At Valvetronic Designs we set out to change that, creating a system that gives the A4 the voice and flexibility it deserves.

Purpose-Driven Engineering

Constructed from T304 stainless steel, this valved exhaust system was designed from the ground up to unlock the full potential of the two liter turbocharged engine. With valves closed the car retains a composed and understated tone, perfect for commuting or long drives. Open the valves and the sound transforms completely, sharper shifts, a more aggressive exhaust note, and lively overrun crackles turn every drive into a far more engaging experience. The system uses larger piping for optimized flow, reduced back pressure, and improved response, while a beautifully finished set of exhaust tips enhances the look of the rear of the car.

Key Features

• Full valved configuration delivering both refined and aggressive sound profiles

• T304 stainless steel construction for strength, durability, and consistent tone

• Larger piping size for improved exhaust flow and responsiveness

• Electronic valve hardware for rapid and seamless operation

• Included exhaust tips designed to perfectly complement the rear of the A4

• Direct bolt on installation with no cutting and no welding required

The Result

The B9 A4 may be the entry level Audi sedan, but with this exhaust installed it feels like something much more special. Quiet and smooth when you want it to be, yet raw and exciting at the push of a button, this system finally allows the A4 to breathe and sound the way it should. For enthusiasts who want to transform their daily driver into something that delivers both refinement and exhilaration, this is the ultimate exhaust configuration for the Audi A4.

Orders are processed same or next business day. Shipping times vary depending on the product, shipping service, and whether freight shipping is required. While we ensure all inventory levels are current and accurate, they can change due to logistics and inventory feeds. Standard shipping typically takes 3-7 business days, but some items may require additional time depending on their origin. Feel free to call us anytime for the latest status of your order.