COMPATIBLE: (3.0L - TURBO V6)

2017 - 2025 AUDI S4 B9

2017 - 2025 AUDI S5 B9 

Welcome to a sound revelation for the Audi S4 B9 Platform. With such a potential powerplant, the EA839 3.0 L V6 hides a truly incredible set of vocals behind the heavy and restrictive factory exhaust equipment. With the Valvetronic Designs full exhaust system, we ensure this incredible powerplant sings all the way up to the redline. Traditionally, in the audi exhaust market, there are many different pieces of the exhaust that you have to purchase from different vendors. We have gone around this and engineered a full exhaust system that connects to the OEM downpipe or aftermarket downpipe and runs all the way back to a set of beautiful exhaust tips. The reason for this is stems from our ethos for developing exhaust systems for the audi platforms and beyond is to engineer and deliver the best sound experience with a single exhaust solution. Gone of the days where you need to combine your catback system with resonator pipes from a separate vendor. This system is your one stop solution to have unparalleled sound, and no compromises when the valves are open, the car has a very aggressive sound and tons of aggressive overrun when off throttle. With the valves closed. The car goes back to sounding like it's bone stock. There is no drone or other residence in the cabinet with the original downpipe installed.

If you are jumping into the Audi B9 platform having come from a B7 or B6 S4 with a lovely 4.2 L V8 you will short changed with the sound experience from factory, but with the Valvetronic Designs full exhaust system installed, your experience will be heightened to previous levels of enjoyment of this naturally aspirated experience. There is no displacement for displacement ultimately, but with this exhaust system, you will not feel short changed with your Audi B9 sound experience. At Valvetronic Designs we do not compromise. We recommend that you do not either when it comes to choosing the best exhaust for your B9.

• Constructed from T304 Stainless Steel

• Electronic exhaust valves with key fob remote system

• 16.4 LBS lighter than OEM exhaust system

• Fully Mandrel bend for maximum flow

• Precision tig welds for high strength

• 100% REVERSABLE, always able to go back to stock at any time

In-House Development at Valvetronic Designs: Pioneering Performance Exhaust Systems

At Valvetronic Designs, we take pride in crafting performance exhaust systems that combine innovation, precision, and unmatched quality. Our in-house development process is built on cutting-edge technology and rigorous testing to deliver the ultimate driving experience. From 3D scanning to sound and performance optimization, every step in our process is engineered for excellence.

1. 3D Scanning: Precision from the Start

The foundation of our exhaust system development begins with precise 3D scanning. By capturing detailed measurements of the vehicle’s underbody, we ensure our exhaust designs integrate seamlessly with the car’s architecture. This process eliminates guesswork and allows us to create systems that fit perfectly, enhancing both performance and aesthetics.

2. CAD Design: From Concept to Reality

Once we have accurate data, our team uses advanced CAD (Computer-Aided Design) software to conceptualize and develop the exhaust system. Each system is designed with both form and function in mind, ensuring a balance of aesthetics and performance. Our engineers focus on optimizing airflow, minimizing backpressure, and creating valve systems that allow the driver to control the sound and performance with the push of a button.

3. In-House Prototyping: Bringing Ideas to Life

Prototyping is where our designs take shape. Using state-of-the-art fabrication equipment, we build prototypes of our exhaust systems in-house. This hands-on approach allows us to refine each design, ensuring it meets our high standards for quality and performance. Our team meticulously inspects and tests each prototype, making adjustments as needed to guarantee that the final product is flawless.

4. Sound & Performance Testing: Tuning for Perfection

What sets Valvetronic Designs apart is our commitment to perfecting both the sound and performance of our exhaust systems. We don’t just aim for power gains; we focus on creating a signature sound that enhances the driving experience. Using our in-house testing facilities, we measure sound levels, optimize valve operation, and analyze performance data to ensure each system delivers the ideal blend of performance and acoustics.

WARRANTY: