Valvetronic Designs, born in the heart of Pennsylvania and engineered for automotive enthusiasts worldwide, is where precision meets passion. The company crafts high-performance valved exhaust systems that do more than just roar - they respond. With the push of a button, drivers can transform the personality of their car, shifting from stealth to symphony, from whisper to wild. Built on a foundation of ingenuity, Valvetronic's exhaust systems are designed, developed, and manufactured in the USA. Every weld, every valve, and every resonance is refined for performance, durability, and unmistakable character. Whether outfitting supercars, track machines, or street legends, Valvetronic ensures the sound always matches the drive.
The Audi B9 S4 and S5, powered by the EA839 3.0L V6, have impressive performance potential-but the stock exhaust hides much of this engine's true character. The Valvetronic Designs Full Valved Exhaust System unleashes its voice, delivering an aggressive, motorsport-inspired tone when desired, and stock-like refinement when needed.
Unlike typical setups requiring multiple components from different vendors, our system is engineered as a complete solution-from the OEM or aftermarket downpipe all the way to the exhaust tips. This single-package design eliminates the need for mixing and matching resonator sections or axle-backs from other brands, ensuring perfect fitment, seamless performance, and consistent sound quality.
With valves open, expect a bold exhaust note, pronounced overrun crackles, and a commanding presence. With valves closed, the car returns to quiet factory manners, with zero drone when paired with the OEM downpipe. For those upgrading from the V8-powered B6 or B7 S4, our system delivers the level of engagement and emotional sound you've been missing-ensuring your B9 ownership experience is just as exciting.
Details:
What's Included
Installation Notes
Features and Components
Fits
Professional installation is highly recommended.
Color: Burnt.
Exhaust Type: Catback.
Material: T304 Stainless Steel.
Sold As: Kit.
Engine Size: 3.0 Liter.
Exhaust Tip Outlet Size: 3.5 Inch.
Mount Style: Bolt On.
Unversal: No.
Fitment: 2018, 2024, Audi, S5, Premium Plus|2018, 2024, Audi, S4, Premium Plus|2018, 2024, Audi, S4, Prestige|2018, 2024, Audi, S5, Prestige|2019, 2024, Audi, S5, Premium|2019, 2024, Audi, S4, Premium.
| Brand | Valvetronic Designs |
|---|---|
| Part Number | VAL-AUD.B9.S4.VSES.BR.BRT |
| Shipping Method | UPS/FedEx/USPS Ground |
| California Prop 65 Warning |
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This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or reproductive harm. For more information, visit https://www.p65warnings.ca.gov/