Valved Exhaust System for Audi RS6 / RS7 C8 4.0 TFSI V8 (2021-2026)
Configuration
Audi RS6 / RS7 C8 4.0 TFSI V8 Valved Exhaust System (2021-2026)
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 RS6 and RS7 C8 exhaust in detail.
Six hundred horsepower, 800 Nm, an estate and a four-door coupé: the RS6 Avant and the RS7 Sportback C8 share the 4.0 TFSI, a twin-turbo V8 with its turbos housed in the vee. Our page covers the 2021 to 2026 model years, those for which the cat-back and the front parts are both documented. The first-generation V8 RS6 Avant C7 has its own page, as do the V6 S6 and S7 C8.
Between the hot-vee turbo layout, which naturally filters the exhaust, and silencers sized for hushed cruising, this V8 whispers where it could roar. With the valves open, our valved cat-back removes the restrictions and brings back the engine’s real pulse: deep bass at idle, an authoritative climb, crisp crackles when you release the throttle. With the valves closed, your Audi becomes the discreet grand tourer it knows how to be.
The page also offers the “Manifold” option, which on this twin-turbo refers to the downpipes at the turbo outlets, with the catalytic converters. On a car that also carries passengers every day, the 200-cell versions are the ones that keep emissions control; the 100-cell versions are accepted or not depending on the car and the rules in your country, while the decat version is reserved for track use. Without a modified map, the V8 stays at 600 hp and gains sound and a little lightness.
The oval tailpipes join the factory rear after fitting without welding, with clamps and gaskets, which takes about two hours on a lift. The driving modes continue to control the factory valves, or the Rog remote takes care of it if needed. 304 stainless steel gives the V8 a full voice, while titanium saves around 40% of the weight for the same design and can be chosen in brushed, gold or purple.
Audi RS6 / RS7 C8 4.0 TFSI V8 exhaust specifications.
| System type | Valved cat-back (valve exhaust), oval tailpipes, built to your VIN |
|---|---|
| Vehicles and chassis code | Audi RS6 Avant and RS7 Sportback C8 |
| Engine | 4.0 TFSI, twin-turbo V8, turbos in the vee, 600 hp and 800 Nm |
| Years | 2021-2026 |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory control through the drive modes, or the Rog remote |
| Front section (option) | Downpipes with 200-cell or 100-cell catalytic converters, or decat |
| Fitting | Clamps and gaskets, no welding, about 2 hours |
| Manufacturing and delivery | Built to your VIN, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the Audi RS6 / RS7 C8 4.0 TFSI V8 exhaust.
My RS6 C8 dates from 2020: can the system be fitted to it?
The page starts at the 2021 model year, the one retained for the front parts, even though the cat-back is documented on C8s from 2019. Send us your RS6’s VIN: we check the exact match before starting anything.
What figures does an RS7 C8 reach at Stage 2?
To fit the cat-back, nothing to remap. If you add the downpipes and entrust the car to an approved tuner, the page publishes 720 hp and 980 Nm for this 600 hp V8. A sports catalytic converter fitted without a suitable map may, however, light the RS7’s engine warning lamp.
RS6 Avant C8 at vehicle inspection: in what state should it be taken?
Close the valves first: the V8 regains the discretion of a stock estate. With the cat-back alone or the 200-cell downpipes, the gases stay treated as from the factory. The 100-cell versions are accepted or not depending on the car and the rules in your country, and a decat RS6 only runs on the circuit.
Stainless steel or titanium for the V8 of an RS7 C8?
304 stainless steel, robust against salt and damp, gives the V8 a round bass. Titanium, around 40% lighter for the same design, adds a more metallic note at high revs and lends itself to gold or purple finishes for the tailpipes.
Audi RS6 / RS7 C8 4.0 TFSI V8: 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 RS6 / RS7 C8 4.0 TFSI V8: 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 RS6 C8 exhaust: giving the 4.0 TFSI V8 its voice back, the complete guide
The RS6 C8 is the most coveted estate in the world: 600 hp, concept car looks and total versatility. One criticism comes up in every road test: too quiet, and the OPF is to blame. A 600 hp V8 that...
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.
-
Finishing
Material, elevated.
The finish reveals the character of the metal. Stainless steel or titanium, depending on the options available for your vehicle.
-
Assembly
Every part in its place.
Components are assembled and adjusted. On valved systems, the mechanism is fitted, set up and tested.
-
Inspection
Check. Then approve.
Geometry, welds, connections and gas flow: the key points are inspected before shipping.
-
Shipping
Ready to join you.
Reinforced packaging protects your exhaust in transit. The final step before giving your vehicle a new voice.
Customer builds
Your videos & photos
The Rog lines fitted on our customers' vehicles, in real conditions.
- Builds
- 500+
- Brands
- 28
- Satisfaction
- 4,9
The journal
News & advice
Best valved exhaust for the Audi RS3 8Y
Which valved exhaust for an Audi RS3 8Y? The options compared (sound, material, valves) and the Rog system made to...
Read the articleBest valved exhaust for the Mercedes-AMG A45 / A45 S W177
Which valved exhaust for a Mercedes-AMG A45 or A45 S W177? The options compared (sound, material, valves) and the Rog...
Read the articleBest valved exhaust for the BMW M2 G87
Which valved exhaust for a BMW M2 G87? The options compared (sound, material, valves) and the Rog system made to...
Read the articleExhaust rules: what changes in 2026 and 2027 (Euro 7, noise cameras, MOT)
Euro 7, new-car noise, noise cameras, MOT and vehicle inspection, and models: what really changes in 2026 and 2027 for...
Read the articleChanging your exhaust: what inspections and approvals cost in 9 countries
What the periodic inspection and the check of a modification cost after changing your exhaust, in 9 European countries: official...
Read the articleIs a cat-back exhaust legal in Ireland? What the NCT checks.
A cat-back leaves your factory cat, sensors and OBD as they are; valves closed, very close to stock, valves open,...
Read the articleSports exhaust (sportsummuti) in Estonia: what the tehnoülevaatus checks.
The sound you choose, a discreet car when it matters: what a Rog valved exhaust gives you in Estonia, how...
Read the articleSports exhaust in Latvia: tehniskā apskate and the CSDD noise limit.
The sound you choose, a discreet car when it matters: what a Rog valved exhaust gives you in Latvia, how...
Read the articleNo article matches this search.
All articles