Audi S4 (B9 / B9.5) 2017-2024 3.0T V6 TFSI Performance Downpipe - Vortex

Audi S4 (B9 / B9.5) 2017-2024 3.0T Performance Downpipe - Vortex®

Tame the Hot V. Unleash the Turbocharged Power.

The Audi S4 B9 is a precision machine, but its 3.0T EA839 heart is held back by a massive, restrictive factory downpipe. Positioned in the "Hot V" of the engine, the stock catalyst not only stifles performance but also traps intense heat near the turbocharger.

Vortex® has engineered the ultimate high-flow downpipe solution to shatter these boundaries. By eliminating backpressure and optimizing exhaust flow, our downpipe allows your S4 to breathe freely, delivering instant boost response and the visceral V6 soundtrack that an "S" model deserves.

### Vehicle Compatibility & Fitment

Precision-designed for a 100% bolt-on fitment on the B9 platform:

### Technical Highlights

• Maximizing Turbo Efficiency: Specifically developed for Stage 2 and Stage 3 builds. By removing the factory catalytic restrictions, our downpipe allows for massive gains in horsepower and torque through increased exhaust gas velocity.

• Instant Boost Response: Significantly reduces turbo lag. The high-flow design allows the single-scroll turbo to hit peak boost earlier, providing a sharper throttle response and relentless mid-range torque.

• The Definitive V6 Soundtrack: Transforms the muted factory note into a clear, aggressive mechanical symphony. Expect sharp "pops and crackles" on downshifts and the iconic turbo spool-up whistle.

• Premium Material Engineering:

  • T304 Stainless Steel: Precision mandrel-bent for maximum flow and lifelong durability against the intense heat of the "Hot V" engine bay.

  • Grade 5 Aerospace Titanium (Optional): The professional’s choice for weight reduction. Significantly lighter than stock and provides a unique metallic tone.

• Artisanal Craftsmanship: Every Vortex® downpipe features our signature hand-laid TIG fish-scale welding, ensuring maximum structural integrity that can withstand extreme track abuse.

### The Vortex® Quality Standard

"Precision Built. Performance Driven. Secured by Vortex®."

• 🛡️ 2-Year Limited Warranty: We stand behind our work. Your Vortex® S4 downpipe is covered by a 2-year warranty against any material or manufacturing defects.

• 📦 Industrial-Grade Secure Packaging: Protected by custom-molded foam, reinforced boxes, and protective film to ensure it arrives in showroom condition, ready for the track.

• 🛠️ 100% Bolt-On Fit: Designed using 3D laser scans of the B9 engine bay. No cutting or welding required for a seamless installation using all factory mounting points and O2 sensor bungs.