Valved Exhaust System for Mercedes-Benz C200 / C300 W205 / S205 / C205 / A205 (2018-2021)
Configuration
Mercedes-Benz C200 / C300 W205 / S205 / C205 / A205 Valved Exhaust System (2018-2021)
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 |
The Mercedes-Benz C200 and C300 W205 / S205 / C205 / A205 exhaust in detail.
Two versions, one principle: the 2018 to 2021 C200 and C300 W205 use a turbocharged four-cylinder with direct injection, with different displacement and power. The livelier C300 reaches 258 hp and 370 Nm. W205 saloon, S205 estate, C205 coupé or A205 convertible: all four body styles take the same system, and your VIN confirms the version before manufacturing.
The Mercedes four-cylinder has an understated, slightly deep tone that can turn hoarse under heavy load. In the W205, the factory exhaust almost erases it: on board, you hear the wind and the road well before the mechanicals. Open the valves on the Rog cat-back and the C-Class takes on a rumble that is present at start-up and a frank note under acceleration. Close them: it regains the reserve of an upmarket car.
At the workshop, the factory exhaust comes off and ours takes its place in about two hours, held by band clamps and gaskets, without cutting. For the valves, the factory control is retained if the car has one; otherwise, the Rog remote decides.
On these turbo engines, the “Manifold” option refers to the downpipe, which carries the original catalytic converter. The 200-cell downpipe keeps emissions control and is enough for most C-Class cars. The more open versions, 100 cells, accepted or not depending on the car and the rules in your country, and decat, reserved for track use, are aimed at a use other than the everyday saloon. No Stage 2 figure is published for these versions, and without an ECU remap the part adds no power. As for material, 304 stainless steel is enough for a car driven all year round; titanium, around 40% lighter, is for those who want a colour and less mass.
Mercedes-Benz C200 / C300 W205 / S205 / C205 / A205 exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN |
|---|---|
| Vehicles and chassis codes | Mercedes-Benz C200 and C300 W205 saloon, S205 estate, C205 coupé and A205 convertible |
| Engine | Turbocharged four-cylinder with direct injection, up to 258 hp and 370 Nm (C300) |
| Years | 2018-2021 |
| Materials and finishes | 304 stainless steel or titanium; titanium in brushed, gold or purple |
| Valves | Factory valve control if the car has it, 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 Mercedes-Benz C200 / C300 W205 / S205 / C205 / A205 exhaust.
Which W205 C-Class models are covered by this C200 / C300 page?
The 2018 to 2021 C200 and C300 W205. The C400, C43 and C63 of the same generation have their own page. Give us your VIN: we check the version before any manufacturing.
Does an equipped C300 W205 need to go back through the ECU?
No, the cat-back fits with the original ECU. The page publishes no Stage 2 figure for the C200 and C300: if you are considering the downpipe and an ECU remap, the result will depend on the exact engine and the tuner.
And at the vehicle inspection, with a C200 W205 fitted with the system?
With the valves closed, the car can hardly be told apart from a standard C-Class. As long as the factory front section or a 200-cell downpipe stays in place, the gases are treated just as they were when new. Beyond that, the 100-cell version is assessed according to the car and your country’s rules, and the decat variant is reserved for track use.
Which material do you recommend for a C200 or C300 W205 used every day?
304 stainless steel is the most frequent choice: sturdy, unaffected by winter salt, with a round sound. Titanium lightens the system by around 40% and gives a more metallic sound at the top of the rev counter.
Saloon, estate, coupé or convertible: does the C200 or C300 W205 take the same system?
Yes. The W205 saloon, the S205 estate, the C205 coupé and the A205 convertible take the same Rog system: same chassis, same engine, same clamp-and-gasket fitting. Your VIN is only used to confirm the version and model year before manufacturing.
Mercedes-Benz C200 / C300 W205 / S205 / C205 / A205: 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.
Rog expert guide
Mercedes-Benz C200 / C300 W205 / S205 / C205 / A205: character for every day, the exhaust guide
Whether C200 or C300, the W205 C-Class is first and foremost an everyday car: comfortable, well built and understated. Yet its turbo four-cylinder gives it real responsiveness, up to 258 hp and 370 Nm on the C300. On the 2018...
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.
-
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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