Valvetronic Designs
Valvetronic AUDI RSQ8 Valved Sport Exhaust system
Valvetronic AUDI RSQ8 Valved Sport Exhaust system
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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
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3-Inch Diameter Tubing: Maximizes flow for improved throttle response and power.
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Dual Sound Modes: Quiet refinement with valves closed, motorsport aggression with valves open.
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OEM Valve Integration: Maintains factory electronics for trouble-free operation.
Sound & Control
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Valves Closed: Stock-like sound levels for comfortable daily driving and highway cruising.
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Valves Open: Silencer fully bypassed for maximum volume and character.
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Optional Free-Flow Downpipes: Unlock even more performance and an enhanced exhaust tone.
Construction & Quality
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Material: Signature T304 stainless steel for strength and corrosion resistance.
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Weight Savings: 11.5 lb lighter than the factory exhaust.
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Craftsmanship: Precision TIG welds for durability and premium finish.
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Tips: Designed to retain OEM exhaust tips for a factory-fit appearance.
Fitment
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2019–2025 Audi RSQ8
Installation Notes
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Direct bolt-on fit to OEM mounting points.
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100% reversible—return to stock at any time.
What’s Included
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T304 stainless steel valved cat-back exhaust system
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OEM-style electronic valves
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All necessary clamps and hardware
Specifications
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Material: T304 stainless steel
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Valves: OEM-style electronic valves
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Weight Savings: 11.5 lb vs. OEM
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Tubing Diameter: 3 inches from front to rear
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Finish: Brushed stainless steel
ECU tuning is the process of adjusting the engine control unit's software to enhance vehicle performance, efficiency, or fuel economy.
It can, depending on the manufacturer. Many warranties do not cover modifications like ECU tuning.
Use the highest octane fuel recommended for your specific tune to ensure optimal performance and safety.
Yes, a properly tuned car can be used daily, as long as the tune is tailored for reliable, everyday driving.
CPC (Central Powertrain Controller) and TCU (Transmission Control Unit) manage your vehicle's powertrain and transmission systems, respectively.
Map switching allows you to change between different tuning settings (maps) for varying driving conditions without having to retune the ECU.
Yes, if done by a professional using proper tools, ECU tuning is generally safe for your vehicle.
ECU tuning works by modifying the software that controls engine parameters like fuel mixture, ignition timing, and boost pressure to optimize performance.
The process of installing a tune depends on the vehicle’s make and model. Some tunes are installed by connecting a tuning device to your car’s OBD-II port and uploading the tuned software, others may require ECU unlock.
Stage 1 is for vehicles with no modifications, stage 2 is for vehicles with bolt-on upgrades or downpipes installed.
We offer post-installation support, troubleshooting, and guidance on using your tuning software and hardware.
Choose tuning software that is compatible with your vehicle, has good reviews, and suits your performance goals (e.g., reliability vs. max power).
