Valved Exhaust System for Mercedes-AMG C43 W205 / S205 / C205 / A205 3.0 V6 turbo (2020-2021)
Configuration
Mercedes-AMG C43 W205 / S205 / C205 / A205 Valved Exhaust System (2020-2021)
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 |
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.
Which valved exhaust for a Mercedes-AMG C43 W205?
The Rog system for the facelifted Mercedes-AMG C43 4MATIC W205 is a valved cat-back exhaust for the W205 sedan, S205 wagon, C205 coupé and A205 convertible, built to your VIN in 304 stainless steel or titanium for the 390 hp twin-turbo V6. Valves open, the V6 regains its deep, muscular timbre; closed, the C43 stays a hushed sedan.
Sound, options and fitting in detail: our Mercedes-AMG C43 W205 guide.
The 3.0-liter twin-turbo V6 is the gateway to AMG six-cylinders, and the 2020 and 2021 C43 W205 draws 390 hp and 520 Nm from it: crisp response, generous torque, proven reliability. Beware of namesakes: the C43 W206 that succeeds it moves to the 2.0-liter four-cylinder and has its own page, as do the C400 and C63 of this generation.
This V6’s natural tone is more interesting than what the factory lets through: deep and muscular, it is erased by mufflers designed for a conventional sedan clientele. With the Rog cat-back, valves open, the voice becomes full and assertive under load, with crisp crackles on the overrun, without ever becoming tiring. With the valves closed, the C43 becomes completely discreet again.
About two hours in the workshop, clamps, gaskets: the system made to your VIN fits without touching the bodywork. The valves follow the AMG modes if your car has them from the factory; otherwise, the Rog remote controls them on demand.
The page offers the “Manifold” option, which on this twin-turbo corresponds to the downpipe and its catalytic converter. The 200-cell downpipe keeps the V6’s emissions control; if you are considering the 100-cell, be aware that it is accepted or not depending on the car and the rules in your country, and keep the decat version for track use, for which it is reserved. Without an ECU remap, expect sound, not power. 304 stainless steel suits the V6’s bass; titanium, around 40% lighter, adds more metallic harmonics at high revs.
Mercedes-AMG C43 W205 / S205 / C205 / A205 3.0 V6 turbo exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN |
|---|---|
| Vehicles and chassis codes | Mercedes-AMG C43 4MATIC W205 sedan, S205 wagon, C205 coupé and A205 convertible |
| Engine | 3.0-liter twin-turbo V6, 390 hp and 520 Nm |
| Power in kW | 287 kW |
| Years | 2020-2021 |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory AMG 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 | Made to order, 20 working days, free delivery |
| Warranty | 3 years, parts and workmanship |
Questions about the Mercedes-AMG C43 W205 / S205 / C205 / A205 3.0 V6 turbo exhaust.
Does this system fit a 2016 to 2019 C43 W205?
The page covers the C43 W205 from 2020 to 2021. For an older model, nothing is confirmed by our sources: send us the VIN and we check before manufacturing. Its replacement, the four-cylinder C43 W206, has a separate page.
What is a C43 W205 worth at Stage 2?
The page publishes 430 hp and 650 Nm, against 390 hp and 520 Nm stock, with downpipe and a full ECU remap by an approved tuner. The twin-turbo V6 handles this work well. For the cat-back alone, no ECU remap is needed.
Is the C43 W205 fitted with the system presentable at the vehicle inspection?
Yes, with the valves closed and with the factory front section or the 200-cell downpipe: the V6 keeps a standard volume and its gases remain treated. The 100-cell depends on the vehicle and your country; in decat form, the C43 is kept for the track.
On a C43 W205, do the valves stay linked to the AMG modes?
If the car has factory valves, yes: the exhaust connects to them and each mode keeps its behavior. You may also prefer the Rog remote, which opens and closes independently of the selected mode.
Does the C43 W205 wagon, coupé or convertible take the same system?
Yes. The W205 sedan, the S205 wagon, the C205 coupé and the A205 convertible take the same Rog system: same chassis, same twin-turbo V6, same clamp-and-gasket fitting. Your VIN is only used to confirm the version and model year before manufacturing.
Mercedes-AMG C43 W205 / S205 / C205 / A205 3.0 V6 turbo: Does a valved exhaust system drone?
No. With the valves closed, the gases flow through the whole rear muffler 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 highway.
Rog expert guide
Mercedes C 43 AMG W205 / S205 / C205 / A205: waking up the twin-turbo V6, the complete guide
The C 43 W205 and its twin-turbo V6 make up the rational AMG sedan par excellence, now very attractive on the used market. The V6 has a deep, muscular voice that the factory exhaust smothers almost entirely. Setting it free...
In detail
Unsure about your configuration?
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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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