Unlock the true voice of your Audi B9 S4 or S5 with the Valvetronic Designs full valved exhaust system, an aggressive, motorsport-inspired tone when you want it and stock-like refinement when you don't.
The B9 S4 and S5 are powered by the EA839 3.0L V6, but the stock exhaust hides much of this engine's character. This system is engineered as a complete solution, from the OEM or aftermarket downpipe all the way to the exhaust tips. The single-package design removes the need to mix and match resonator sections or axle-backs from other brands, for consistent fitment, performance and sound quality.
With the valves open, expect a bold exhaust note, pronounced overrun crackles and a commanding presence. With the valves closed, the car returns to quiet factory manners, with zero drone when paired with the OEM downpipe.
Key features
- One-piece system design that eliminates mixing components from multiple vendors
- Electronic valve control to switch between aggressive and refined sound instantly
- Mandrel-bent construction to maximise flow for improved throttle response and power
Sound and control
- Valves open: aggressive tone with rich midrange and sharp overrun crackles on deceleration
- Valves closed: quiet, refined and OEM-like for comfortable daily driving
- No drone: when paired with the OEM downpipe, cabin comfort is unaffected
Specifications
- Material: T304 stainless steel for long-term durability and corrosion resistance
- Tubing: full mandrel-bent T304 stainless steel
- Valves: electronic, remote-controlled
- Craftsmanship: precision TIG welds and mandrel bends for optimal flow and strength
- Weight savings: 16.4 lb lighter than OEM
- Finish: brushed stainless steel
- Tips: includes premium exhaust tips for a finished, performance-oriented look
What's included
- Full T304 stainless steel valved exhaust system
- Electronic exhaust valves with key fob remote system
- All necessary clamps and hardware
Installation
- Direct-fit for sedan models
- Coupe models require modification to shorten the mid-section for proper fitment. Contact info@veromotorsport.com for guidance
- 100% reversible, so you can return to stock at any time
Fitment
- 2017–2024 Audi S4 (B9)
- 2018–2024 Audi S5 (B9)
Why buy from Vero Motorsport
Vero Motorsport is an authorised Valvetronic Designs dealer, with fast Australia-wide shipping and expert support before and after your purchase.
Order online today and add the B9 S4 / S5 valved exhaust system to your cart.
Estimate shipping
Not sure if a part fits your vehicle? Contact us with your make, model, and year before ordering. We will confirm compatibility so you order the right part the first time.
Every product is covered by a 12-month manufacturer-backed warranty from the date of purchase.
Vero Motorsport works with a national network of authorised installers. Contact us with your location and fitment requirements for a recommended workshop in your area.

























