Valved Exhaust System for Audi A6 / A6 Avant C8 2.0 TFSI (2019-2021)
Configuration
Audi A6 / A6 Avant C8 2.0 TFSI Valved Exhaust System (2019-2021)
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
Which valved exhaust for an Audi A6 or A6 Avant C8 2.0 TFSI?
The Rog system for the Audi A6 and A6 Avant C8 2.0 TFSI (45 TFSI) is a valved cat-back exhaust in 304 stainless steel or titanium, built to your VIN for the 245 hp, 370 Nm four-cylinder. Valves closed, the large saloon keeps its factory volume on the motorway; open, it gains a full, sporty tone.
Sound, options and fitting in detail: our Audi A6 C8 2.0 TFSI guide.
The A6 C8 45 TFSI moves along with a 2.0 turbo four-cylinder producing 245 hp and 370 Nm, and a factory exhaust designed so you never hear it. The page covers 2019 to 2021 and targets the A6: no A7 is documented in our records for this engine, so your VIN is checked before manufacturing. The other C8s, from the 3.0 TFSI V6 to the S6, S7, RS6 and RS7, have separate pages.
Beneath its discretion, the TFSI keeps a character that the factory exhaust erases. With the valves open, our valved cat-back gives it a full, sporty and rewarding tone, with crisp crackles when you lift off. With the valves closed, the large saloon returns to a volume close to how it was delivered, perfect for business trips.
Nothing is welded: the system is fixed with clamps and gaskets, in about two hours, with round tailpipes. If the car has factory valves, the drive modes stay in control; otherwise, the Rog remote, whose box sits in the boot, opens and closes them at the press of a button.
The page also sells the “Manifold” option, which on this turbo engine corresponds to the downpipe carrying the catalytic converter. Chosen in 200-cell form, this downpipe leaves the A6 with full emissions control, which suits a high-mileage car; in 100-cell form, it will be accepted or not depending on the vehicle and your country’s rules, whereas its decat version, reserved for track use, makes little sense on a saloon like this. Without an ECU remap, the 245 hp stay put; it adds sound and lightens the whole a little. 304 stainless steel is the most popular material; titanium, around 40% lighter, comes in three finishes: brushed, gold or purple.
Audi A6 / A6 Avant C8 2.0 TFSI exhaust specifications.
| System type | Valved cat-back (valve exhaust), round outlet pipes |
|---|---|
| Vehicles and chassis code | Audi A6 C8 2.0 TFSI (45 TFSI) saloon and Avant; A7 not documented |
| Engine | 2.0 TFSI, turbocharged four-cylinder, 245 hp and 370 Nm |
| Power in kW | 180 kW |
| Years | 2019-2021 |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory valve control if fitted, otherwise 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 |
| Manufacturing and delivery | Made to order, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the Audi A6 / A6 Avant C8 2.0 TFSI exhaust.
Is my A6 C8 45 TFSI Avant compatible?
Yes. The A6 C8 45 TFSI saloon and Avant take the same Rog system: same chassis, same 2.0 TFSI, same clamp-and-gasket fitting. Your VIN is only used to confirm the version and model year before manufacturing.
Does the A6 C8 45 TFSI benefit from a modified map?
For the cat-back, the 45 TFSI keeps its Audi engine management without any issue. An ECU remap becomes relevant if you add the downpipe, as it is what turns the freed-up flow into power; no Stage 2 figure is published for this version.
Audi A6 C8 2.0 TFSI with a Rog exhaust: what should you know about vehicle inspection?
Present it with the valves closed: the four-cylinder regains its discretion. As long as the A6 runs with the cat-back alone or a 200-cell downpipe, nothing changes for emissions control. A 100-cell is accepted or not depending on the vehicle and your country’s rules, whereas the decat A6 only runs on the track.
For a high-mileage A6 C8, which material is best?
304 stainless steel resists salt and damp and gives a full sound. Titanium lightens the system by around 40% for the same design, sounds more metallic at high revs and does not rust.
Audi A6 / A6 Avant C8 2.0 TFSI: 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 C8 2.0 TFSI: 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 A6 / A6 Avant C8: the complete exhaust system guide
The A6 C8 is a refined long-distance cruiser whose sound has been tuned for total anonymity. Our exhaust system gives it a richer, more flattering tone, without ever compromising cruising comfort, thanks to the closed valves. Here, point by point,...
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.
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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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