Valved Exhaust System for Mercedes-AMG S65 C217 / A217 6.0 V12 biturbo (2014-2020)
Configuration
Mercedes-AMG S65 C217 / A217 Valved Exhaust System (2014-2020)
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 |
Mercedes-AMGS63 / S65 C217 / A217
The Mercedes-AMG S65 C217 / A217 exhaust in detail.
Few production cars are powered by a twin-turbo V12; the S65 C217 is one of them. Its 6.0-litre M279 delivers 630 hp and, above all, 1,000 Nm very low in the rev range, power without nervousness that arrives like a continuous wave. The page covers the C217 coupé and the A217 convertible from 2014 to 2020, and only with the V12: the V8 S63 C217 models have their own pages.
Turbos and factory exhaust form a double filter: the sound of the twelve cylinders, rich and silky, denser than a V8 and smoother too, barely reaches the cabin. With the valves open, the Rog cat-back lets you hear a deep rumble at start-up, then a continuous song with every acceleration. Closed again, the valves give the coupé back the calm of a rolling lounge, for travelling far without unwanted noise.
Made for your VIN, the system is secured in about two hours, clamps and gaskets included, without a single weld being needed. Valves controlled by the factory system if there is one, otherwise by the Rog remote. The tips are the bumper’s own, as on the S65 W222 saloon, which has its own page.
On this V12, the “Manifold” option corresponds to the catalysed downpipe. Chosen with 200 cells, this part keeps emissions control and respects the coupé’s purpose. Fitted with 100 cells, the part will be accepted or not depending on the car and the rules in your country; in decat form, it is reserved for track use, somewhere few S65s go. Without an ECU remap, the engine gains nothing but a voice. Titanium or 304 stainless steel: the former removes around 40% of the mass, the latter remains the most widespread choice.
Mercedes-AMG S65 C217 / A217 6.0 V12 biturbo exhaust specifications.
| System type | Valved cat-back (valve exhaust), built to your VIN, ending behind the bumper tips |
|---|---|
| Vehicles and chassis codes | Mercedes-AMG S65 C217 coupé and A217 convertible |
| Engine | M279, 6.0-litre twin-turbo V12, 630 hp and 1,000 Nm |
| Years | 2014-2020 |
| 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-AMG S65 C217 / A217 6.0 V12 biturbo exhaust.
Can the V12 S65 C217 coupé system be fitted to a V8 S63 C217?
No, the V8 S63 C217s, in both 5.5 and 4.0-litre form, have their own pages. This one only targets the 2014 to 2020 S65 C217 6.0 V12 coupé. Your VIN confirms the version before manufacturing.
Once remapped with its downpipe, what is the S65 C217 coupé’s V12 worth according to the page?
The table shows 730 hp and 1,200 Nm after a downpipe and a full ECU remap, where the V12 leaves the factory with 630 hp and 1,000 Nm. For the cat-back alone, the ECU stays as it is.
Mercedes-AMG S65 C217 6.0 V12 biturbo with a Rog exhaust: what should you know about vehicle inspection?
With the cat-back only or the 200-cell sports catalytic converter, emissions control is retained: present the car with the valves closed. The 100-cell brings more sound and flow, and whether it is accepted at the emissions test depends on the car and local rules; the decat version is intended for track use.
Can the S65 Cabriolet A217, the open-top version of the coupé, take this system?
Yes. The C217 coupé and the V12 A217 convertible, sold from 2016 to 2019, take the same Rog system, rear silencers included, with the same clamp-and-gasket fitting. Your VIN is only used to confirm the version and model year before manufacturing.
Mercedes-AMG S65 C217 / A217 6.0 V12 biturbo: 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-AMG S65 C217 / A217 V12 biturbo: the V12 in all its majesty, the exhaust system guide
The S65 Coupé C217 sat at the top of the Mercedes-AMG range of its day: a large luxury coupé powered by a 6.0-litre biturbo V12 with 630 hp and 1,000 Nm. Immense power, delivered in almost total silence, because the...
In detail
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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.
-
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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