Audi RSQ8 Valved Cat-Back Exhaust System

T304 Stainless Steel with OEM-Style Electronic Valve Control

Overview

The Audi RSQ8 blends supercar performance with SUV practicality—but like many modern performance vehicles, its factory exhaust keeps things a little too restrained. The Valvetronic Designs Valved Cat-Back Exhaust System unleashes the full potential of the 4.0L twin-turbo V8, giving it the voice it deserves.

This 3-inch system runs from the downpipes to the OEM exhaust tips, offering two distinct personalities: valves closed for refined, factory-like cruising, or valves open for an unfiltered, aggressive soundtrack. For those who want even more performance and volume, our optional free-flow downpipes take things to the next level.

Controlled via OEM-style electronic valves, the system offers long-term reliability, seamless integration, and unmatched flexibility.

Why It Works

• 3-Inch Diameter Tubing: Maximizes flow for improved throttle response and power.

• Dual Sound Modes: Quiet refinement with valves closed, motorsport aggression with valves open.

• OEM Valve Integration: Maintains factory electronics for trouble-free operation.

Sound & Control

• Valves Closed: Stock-like sound levels for comfortable daily driving and highway cruising.

• Valves Open: Silencer fully bypassed for maximum volume and character.

• Optional Free-Flow Downpipes: Unlock even more performance and an enhanced exhaust tone.

Construction & Quality

• Material: Signature T304 stainless steel for strength and corrosion resistance.

• Weight Savings: 11.5 lb lighter than the factory exhaust.

• Craftsmanship: Precision TIG welds for durability and premium finish.

• Tips: Designed to retain OEM exhaust tips for a factory-fit appearance.

Fitment

• 2019–2025 Audi RSQ8

Installation Notes

• Direct bolt-on fit to OEM mounting points.

• 100% reversible—return to stock at any time.

What’s Included

• T304 stainless steel valved cat-back exhaust system

• OEM-style electronic valves

• All necessary clamps and hardware

Specifications

• Material: T304 stainless steel

• Valves: OEM-style electronic valves

• Weight Savings: 11.5 lb vs. OEM

• Tubing Diameter: 3 inches from front to rear

• Finish: Brushed stainless steel

Orders are processed same or next business day. Shipping times vary depending on the product, shipping service, and whether freight shipping is required. While we ensure all inventory levels are current and accurate, they can change due to logistics and inventory feeds. Standard shipping typically takes 3-7 business days, but some items may require additional time depending on their origin. Feel free to call us anytime for the latest status of your order.