Mercedes-Benz C200 / C300 W205: 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 to 2021 model years, the factory exhaust was tuned so that you never hear this engine. This guide shows you how to configure a ROG exhaust that brings character to your C-Class without giving up its comfort.
Written by ROG Motorsport · Updated
Your ROG exhaust for the Mercedes-Benz C200 / C300 W205
From €2,190 in stainless steel, €2,690 in titanium
Configure my exhaust- Vehicles
- Mercedes-Benz C200 / C300 W205 (2018-2021)
- Engine
- 258 hp · 370 Nm
- Exhaust
- Valved cat-back, built for your VIN
- Material
- 304 stainless steel or titanium
- Front section
- Optional: catted downpipe with 200 or 100 cells, or decat
- Valves
- ROG remote, or factory control if your vehicle has it
- Lead time
- 20 working days from order confirmation to delivery
- Warranty
- 3 years, parts and workmanship
Closely related versions have their own guide: Mercedes-Benz C200 W206 1.5 turbo, Mercedes-Benz C400 W205 V6, Mercedes-AMG C43 W205 3.0 V6 turbo, Mercedes-AMG C63 / C63 S W205 4.0 V8 biturbo.
The W205 C-Class turbo four-cylinder: economy and responsiveness
The W205 C200 and C300 from this period both use a turbocharged direct-injection four-cylinder, with different displacements and power outputs. The most powerful, the C300, reaches 258 hp and 370 Nm. In both cases, the torque arrives early and gives the car strong acceleration without having to work the engine, which is perfectly suited to everyday use.
On a turbo four-cylinder, the factory exhaust has a simple mission: to go unnoticed. The W205's exhaust does this very well, to the point that the engine goes unnoticed. The ROG valved exhaust replaces it and changes everything. With the valves closed, the C-Class stays the hushed car you know; with them open, it takes on a more dynamic sound. Neither the engine nor the ECU is modified.
How the exhaust on your Mercedes-Benz C200 / C300 W205 is put together
An exhaust system is best understood in two parts. Here is what each one does, and what ROG replaces.
The cat-back is the complete exhaust system
It is everything you can see under your Mercedes-Benz C200 / C300 W205, from the outlet of the front section to the tips: pipes, silencers, valves. This is the part where most of our research and development goes: it is what shapes the sound, and it is enough on its own to transform the car.
The front section, where the catalytic converter sits
On your Mercedes-Benz C200 / C300 W205, it is the downpipe, the pipe leading from the turbo. It contains the factory catalytic converter: the second restriction in the exhaust, after the silencer. Replacing it is optional: it frees up the flow, and it is the ECU remap that turns that into horsepower.
The figures for your Mercedes-Benz C200 / C300 W205
An exhaust system is judged first by ear and on the scales. The extra horsepower comes from an ECU remap.
Power
Torque
Published factory and Stage 2 figures.
The ROG exhaust works with or without an ECU remap. To get the full potential out of your Mercedes-Benz C200 / C300 W205, we recommend taking it to an approved tuning centre afterwards.
Configuring your exhaust, step by step
4 choices, in the same order as the product page configurator.
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Step 1 of 4: Material: stainless steel or titanium
For your Mercedes-Benz C200 / C300 W205, the exhaust costs €2,190 in stainless steel and €2,690 in titanium.
304 stainless steel
2 190 €
- Weight
- Baseline
- Sound
- Full and rounded
The safe bet: strong, corrosion-proof, with a full, rounded sound. The best value for money.
Titanium
2 690 €
- Weight
- Around 40% lighter
- Sound
- Metallic, crystal-clear
It makes the exhaust around 40% lighter for the same design. Its note is more metallic and clearer higher up the rev range, and its finish ranges from brushed to blued.
No worries on durability: 304 stainless steel shrugs off winter road salt and titanium does not rust. Stainless steel or titanium: what really changes.
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Step 2 of 4: Front section: downpipe and catalytic converter
Optional: the downpipe on your Mercedes-Benz C200 / C300 W205, with its catalytic converter. Each option is placed on our sound scale of 0 to 10, valves open, with the factory exhaust at 3.
Cat-back only
Included
7/10Factory emissions control
The factory front section stays in place. It is already a complete transformation, and the choice of many of our customers.
200-cell sports catalytic converter
+700 €
8/10Road use and French MOT
More flow, emissions control retained: the right option for road use.
100-cell sports catalytic converter
+700 €
9/10French MOT pass not guaranteed
More open than the 200-cell: the sound hardens at high revs and emissions control is reduced.
Decat
+460 €
10/10Track use only
Flow with no filter at all: the rawest sound and the sharpest response.
Sound intensity, on a scale of 0 to 10
- 10/10Decat downpipe + ROG cat-back
- 9/10100-cell sports catalytic converter + ROG cat-back
- 8/10200-cell sports catalytic converter + ROG cat-back
- 7/10ROG cat-back only, factory catalytic converter retained
- 3/10Factory exhaust, for comparison
Valves open. With the valves closed, every configuration becomes discreet again.
What about the engine warning light? With a sports catalytic converter it can come on, because the rear oxygen sensor reads less cleaning. Nothing mechanical is wrong: an ECU remap or a session with a diagnostic tool sorts it out. Without a catalytic converter, you will need an ECU remap. If it happens to you, call us and we will point you in the right direction. Passing the French MOT with a sports exhaust.
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Step 3 of 4: Valves: ROG remote or factory control
Two ways to control the valves on your Mercedes-Benz C200 / C300 W205.
ROG remote
A discreet control unit in the boot and a two-button remote: you open and close whenever you like, independently of the drive modes. For fitting, we support you by phone or by email.
Factory control
- Only for vehicles fitted with factory valves
- Controlled by the drive modes
For vehicles fitted with factory valves: the exhaust connects to their control and the drive modes stay in charge, with no extra control unit.
At 130 km/h, many sports exhausts drone. Here, with the valves closed, the exhaust flows through the silencer and stays composed when cruising; open, it makes itself heard when you choose. More about exhaust drone.
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Step 4 of 4: Tips: the visual signature
Match the tips to the style of your Mercedes-Benz C200 / C300 W205, understated or bold. A particular finish in mind? Send us a photo and we will look at it together.
- Stainless steel
- Black
- Carbon
- Blued titanium
The ROG sound signature on the Classe C W205
The Mercedes turbo four-cylinder has a restrained, slightly deep tone that can turn husky under heavy load. In the W205, the factory exhaust erases it almost entirely: inside, you mostly hear wind and road noise, rarely the engine.
With the valves open, the ROG exhaust brings a stronger rumble at start-up and a frank note under acceleration, making every journey livelier. With the valves closed, your C-Class regains the discretion of an upmarket car, for everyday driving and the motorway alike.
From order to fitting
-
Configuration
You configure the exhaust and enter the VIN from box E of your registration certificate.
-
Check
Your VIN is checked before any manufacturing begins.
-
Manufacturing
The exhaust is produced to order, for your vehicle.
-
Delivery
Free in Europe, insured parcel, tracking number from dispatch.
-
Fitting
Around two hours in the workshop, with no welding or cutting.
20 working days from order confirmation to delivery
- Warranty
- 3 years, parts and workmanship, from the date of delivery
- Payment
- In instalments with Klarna
- Installation
- At the garage of your choice
Is your Mercedes-Benz C200 / C300 W205 still under the manufacturer's warranty? In Europe, the manufacturer cannot refuse cover simply because a part from another brand has been fitted: it is up to the manufacturer to prove that the fault came from that part. Our article on the manufacturer's warranty.
Our recommendations for your Mercedes-Benz C200 / C300 W205
-
Daily driving
2 190 €
- Stainless
- Cat-back only
- ROG remote
Your Mercedes-Benz C200 / C300 W205 stays easy to live with, the factory emissions control is retained, and you open the valves whenever you decide.
View this configuration -
Fast road
3 390 €
- Titanium
- 200-cell downpipe
- ECU remap
The best of both worlds: character and breathing, with emissions control retained.
View this configuration -
Track
3 150 €
- Titanium
- Decat downpipe
- Stage 2
The most extreme configuration, for track use only.
View this configuration
Every Mercedes-Benz C200 / C300 W205 has its own story and its own use: if none of these profiles sounds like you, let's talk.
Mercedes-Benz C200 / C300 W205: your questions
How much power does an exhaust system add to the Mercedes-Benz C200 / C300 W205?
As standard, the Mercedes-Benz C200 / C300 W205 produces 258 hp and 370 Nm. The exhaust alone acts first on sound, breathing and weight; the extra horsepower comes from an ECU remap.
Stainless steel or titanium: which material for the Mercedes-Benz C200 / C300 W205?
For the Mercedes-Benz C200 / C300 W205, the ROG exhaust costs €2,190 in stainless steel and €2,690 in titanium. Stainless steel is the safe bet, with a full sound; titanium makes the exhaust around 40% lighter and gives a more metallic note higher up the rev range.
Do you need to replace the catalytic converter on the Mercedes-Benz C200 / C300 W205?
It is not compulsory. The cat-back alone is enough to change the character of the Mercedes-Benz C200 / C300 W205. Replacing the downpipe is how you go further, together with an ECU remap: 200 cells for the road, 100 cells or decat for more radical use.
Will the Mercedes-Benz C200 / C300 W205 pass the French MOT with a ROG exhaust?
The cat-back only and the 200-cell converter both retain emissions control: present the Mercedes-Benz C200 / C300 W205 with the valves closed. With the 100-cell converter, a pass is no longer guaranteed; the decat fails the emissions test.
How is the ROG exhaust fitted to the Mercedes-Benz C200 / C300 W205?
With clamps and gaskets, no welding or cutting: around two hours in the workshop for a well-equipped mechanic. The exhaust is built to the VIN of your Mercedes-Benz C200 / C300 W205.
What does a ROG exhaust cost for the Mercedes-Benz C200 / C300 W205, and how long does it take?
From €2,190 to €3,390 depending on the configuration. Allow 20 working days from order confirmation to delivery. Delivery is free and the exhaust comes with a 3-year warranty.
Unsure about your configuration? Give us a call.
Stainless steel or titanium, cat-back only or the complete system: the right choice depends on how you drive and on your Mercedes-Benz C200 / C300 W205. We take the time to talk it through before you order, with a reply within 24 hours. We are not here to sell to you over the phone: we help you choose, even if that means a cheaper option because it suits the way you drive.
ROG is a French brand, and the way we work comes down to one idea: an exhaust system should be sold with advice, not just a product page. More than 500 exhaust systems fitted and a rating of 4.9 out of 5.
Further reading
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