Valved Exhaust System for Audi A6 / A6 Avant / A7 C8 3.0 TFSI V6 (2019-2022)
Configuration
Audi A6 / A6 Avant / A7 C8 3.0 TFSI V6 Valved Exhaust System (2019-2022)
Valves
Operated by remote control, factory-paired.
Estimated at 0.50 m from the outlet, 45°, 2,000 rpm with a warm engine. Allow ± 2 dB depending on the engine and measuring point. A 3 dB difference is audible in a direct comparison; 10 dB sounds roughly twice as loud.
Configuration guide
Sound intensity with the valves open, on a scale of 0 to 10.
| Configuration | Intensity |
|---|---|
| Decat downpipe + Rog cat-back | 10/10 |
| 100-cell sports catalytic converter + Rog cat-back | 9/10 |
| 200-cell sports catalytic converter + Rog cat-back | 8/10 |
| Rog cat-back only, factory catalytic converter retained | 7/10 |
| Factory exhaust, for comparison | 3/10 |
AudiA6 / A7 / S6 / S7 / RS6 / RS7 C8
The Audi A6 and A7 C8 3.0 TFSI exhaust in detail.
Plenty of torque, very little noise: the 3.0 TFSI in the A6 and A7 C8, a 340 hp, 500 Nm turbocharged V6 sold as the 55 TFSI, was tuned by Audi for performance without ostentation. This page covers both models, from 2019 to 2022. The A6 C8 2.0 TFSI, the S6 and S7 C8 with the 2.9 TFSI and the RS6 and RS7 C8 each have their own page.
The factory exhaust filters the V6 from end to end, to near-total silence. Open the valves on this valved cat-back and the V6 regains a muscular bass, present as soon as you accelerate, punctuated by crisp crackles when you lift off, without ever becoming tiring. With the valves closed, your A6 or A7 keeps its factory discretion on the motorway and in town alike.
In the workshop, no cutting: band clamps, gaskets and about two hours on a lift; the rear gets four round tailpipes. If the car has factory valves, the drive modes decide; otherwise, the Rog remote, with its box in the boot, operates them on demand.
The “Manifold” option on the page replaces the V6’s downpipe, the part that carries the catalytic converter at the turbo outlet. Daily drivers will take it with 200 cells, with emissions control intact; with 100 cells, it is accepted or not depending on the car and the rules in your country, and the decat version is reserved for track use. With the ECU left stock, the 340 hp does not change: it brings sound and a little less weight. In titanium, around 40% lighter than 304 stainless steel, the system comes in brushed, gold or purple.
Audi A6 / A6 Avant / A7 C8 3.0 TFSI V6 exhaust specifications.
| System type | Valved cat-back (valve exhaust), four round tips, built to your VIN |
|---|---|
| Vehicles and chassis code | Audi A6 saloon and Avant, A7 Sportback C8 3.0 TFSI V6 (55 TFSI) |
| Engine | 3.0 TFSI, turbocharged V6, 340 hp and 500 Nm |
| Years | 2019-2022 |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory drive modes or the Rog remote |
| Front section (option) | Downpipe with 200-cell or 100-cell catalytic converter, or decat |
| Fitting | Clamps and gaskets, no welding, about 2 hours on a lift |
| Manufacturing and delivery | Built to your VIN, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the Audi A6 / A6 Avant / A7 C8 3.0 TFSI V6 exhaust.
Is the A7 Sportback C8 55 TFSI covered in the same way as the A6?
Yes, our page names the A6 and A7 C8 3.0 TFSI from 2019 to 2022. Your VIN is still checked before manufacturing, as with every order.
Which Stage 2 for the A6 C8 55 TFSI?
The cat-back alone requires no ECU remap. The downpipe, combined with an ECU remap at an approved tuning centre, leads to the published Stage 2 figures: 420 hp and 680 Nm.
Vehicle inspection: what should I do with a valved A7 C8?
Close the valves and the V6 becomes as discreet as on delivery day. Whether the car has the cat-back alone or the 200-cell downpipe, the gases stay treated. For the 100-cell downpipe, the verdict depends on the car and the rules in your country; the decat one turns the A7 into a track car.
On the A6 C8 3.0 TFSI, who controls the valves?
You choose when you configure the system. Factory control: the drive modes open and close the valves. Rog remote: two buttons, whatever mode is engaged.
Does the A6 Avant C8 55 TFSI take the same system as the saloon?
Yes. The A6 C8 saloon and Avant take the same Rog system: same chassis, same 3.0 TFSI V6, same clamp-and-gasket fitting. Your VIN is only used to confirm the version and model year before manufacturing.
Audi A6 / A6 Avant / A7 C8 3.0 TFSI V6: Does a valved exhaust system drone?
No. With the valves closed, the gases flow through the whole rear silencer and the cabin stays calm at a steady speed. Our Rog exhausts are designed to avoid drone. Learn more: Why our systems stay calm on the motorway.
Audi A6 / A6 Avant / A7 C8 3.0 TFSI V6: straight pipe or resonator?
On this model, two characters at the same price: the straight pipe for the raw sound of your engine, unfiltered, or the resonator for a rounder and slightly softer voice. Either way, the exhaust stays fully sporty. Learn more: Exhaust resonator: what does it do? Straight pipe or resonator, which sound to choose.
Rog expert guide
Audi A7 4K: waking up the turbo V6, the complete exhaust system guide
The A7 4K in 55 TFSI form is a high-tech GT with a smooth, powerful turbo V6, tuned for absolute silence at cruising speed. Elegant as it is, it deserves a sound signature to match its silhouette. Our exhaust system...
In detail
Rog Advisor
A question about this exhaust?
Fitment, sound, catalyst, valves, delivery: the answer comes straight away, with your configuration in context.
The Rog Advisor is an automated assistant trained on our product pages and answers. For an important decision, write to us: we confirm by e-mail.
Unsure about your configuration? Talk to us before you order. We know your car. Write to us at contact@rogmotorsport.com: we reply in writing, in English, within 24 hours. Email us
Reviews imported from our previous system and translated from French; verified purchases carry the badge.
Rog presentation film: choosing your vehicle, Standard or Equal Length design, stainless steel or titanium, Z-Pipe, controlled valves, titanium and tip finishes, and support from choosing your configuration through to shipping.
THE Rog CRAFT
Our process.
From the first bend to the last check. The same care at every step.
-
Design
Designed for your vehicle.
Geometry matched to your model, carefully studied bends and precise mounting points. Everything starts with accurate design.
-
Manufacture
Crafted with precision.
Tube bending, part fitting and TIG welding: every joint receives the same care.
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Finishing
Material, elevated.
The finish reveals the character of the metal. Stainless steel or titanium, depending on the options available for your vehicle.
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Assembly
Every part in its place.
Components are assembled and adjusted. On valved systems, the mechanism is fitted, set up and tested.
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Inspection
Check. Then approve.
Geometry, welds, connections and gas flow: the key points are inspected before shipping.
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Shipping
Ready to join you.
Reinforced packaging protects your exhaust in transit. The final step before giving your vehicle a new voice.
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