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Valvetronic Designs

Audi B9 S4 / S5 Valved Sport Exhaust System

Audi B9 S4 / S5 Valved Sport Exhaust System


Regular price $2,599.00
Regular price $0.00 Sale price $2,599.00
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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.


  • 2017 - 2024 Audi S4
  • 2018 - 2024 Audi S5

Features of this Valved Exhaust

  • 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

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One of the best purchases I’ve made this year! More smiles per mile!

- Brenden Pullido